Claude Hopkins’ *Scientific Advertising* presents a practical, data-driven approach to advertising grounded in human psychology and real-world sales results. The core idea is that advertising is fundamentally salesmanship—focused on serving the customer’s needs rather than promoting a product. Key principles include using specific, measurable claims over generalizations, offering free samples or trials to drive engagement, and treating every ad as a personal interaction with a real prospect. Hopkins emphasizes constant testing and experimentation: small-scale trials allow advertisers to evaluate effectiveness, reduce costs, and avoid wasting budgets. For instance, changing a headline by just a few words can multiply returns by five or ten times. The book illustrates how specific strategies—like offering a free sample or highlighting desired outcomes (e.g., beautiful teeth instead of preventing decay)—dramatically improve conversion. Long-term success comes from continuous refinement, with proven campaigns being iteratively improved over time, reducing customer acquisition costs by up to 75%. Hopkins argues that advertising is not about creativity for its own sake, but about applying scientific, tested methods to achieve measurable results. His work remains foundational because it shows that effective advertising is built on observation, trial, and the understanding that people respond to concrete, personal benefits—never abstract promises. The book’s enduring value lies in its practical, proven strategies that have stood the test of time and become essential tools for modern marketers.
Human nature is perpetual. In most respects, it is the same today as the time of Caesar.
So the principles of psychology are fixed and enduring. You will never need to unlearn
what you learn about them. We learn, for instance, that curiosity is one of the strongest
human incentives. We employed it whenever we can. Puffed wheat and puffed rice were made
successful largely through curiosity. For them, we used headlines like "food shot from guns."
125 million steam explosions caused in every kernel. These foods were failures before
that factor was discovered. We learned that people judged largely by price. They are
not experts. In the British National Gallery is a painting which is announced in the catalog
to have cost $750,000. Most people at first pass it by at a glance. Then later they learn
what the painting cost. They return and surround it. A department store advertised a hundred
dollar hat and the floor could not hold the women who came to see it. We often employ
this factor. Perhaps we are advertising a valuable formula to merely say that would not
be impressive. So we state as a fact that we paid $100,000 for that formula. That statement
when tried has won a wealth of respect. Many have advertised "try my product for a week
if you don't like it, will return your money." Then someone conceived the idea of sending
goods without any money down and saying "pay in a week if you like them." That proved
many times as impressive. One great advertising man stated the difference this way. Two men
came to see me. Each offering me a horse. Both made equal claims. They were good horses.
A child could drive them. One man said "try the horse for a week if my claims are not
true come back for your money." The other man said "try the horse for a week" but then
he added "come and pay me then." I naturally bought the second man's horse. An advertiser
offered a set of books to businessmen. The advertising was unprofitable so he consulted
another expert. The ads were impressive. The offer seemed attractive. But said the second
man "let us add one little touch which I have found very effective. Let us offer to put
the buyer's name in gold lettering on each book." That was done and without another change
in the ads, they sold some hundreds of thousands of books. Do some peculiar kink in human psychology,
the names in gold gave much added value to the books. In the same way, it is found that
an offer limited to a certain class of people is far more effective than a general offer.
For instance, an offer limited to veterans of the war. Art of members of a lodge. Art of
executives. Those who are entitled to any seeming advantage will go a long way not to lose
that advantage. An advertiser suffered much from substitution. He said "look out for
substitutes. Be sure you buy this brand etc. with no effect." These were selfish appeals.
Then he said "try our rivals too" in his headlines. He invited comparisons and showed
that he did not fear them. That corrected the situation. Buyers were careful to get the
brand so conspicuously superior that its maker could court a trial of the rest. There
is a great deal in mental impression. Submit five products exactly alike and five people
may choose one of them. But point out in one some qualities to notice and everyone will
find them. The five people then will all choose the same product. These are just some examples.
There are endless phases to psychology. Some people know them by instinct. Many of them
are taught by experience. But we learn most of them from others. When we see a winning method,
we note it down for use when the occasion offers. These things are very important. An identical
offer made in a different way may bring multiplied returns. That was an excerpt from the chapter
on psychology of the book "Scientific Advertising Written by Claude Hopkins." I wanted to cover
this book because I thought it would be a good bonus episode to go with the the book,
the biography on Albert Lasker that I just did because Claude and Albert worked together for
I think like 17 years. Claude Hopkins will sound familiar to it may sound familiar to you
because back on founders number 170 I read his biography my life in advertising. He is largely
regarded as probably the greatest copywriter to ever live. And so I want to pull out this quote
from David Olgovee in his book Olgovee in advertising. And he says nobody should be allowed to have
anything to do with advertising until he has read this book seven times. It has changed the course
of my life. That is very high praise for a very short and very old book. So this book is 100 pages
maybe and that is being very generous because the chapters go by really fast. It was first written
the story goes that it was first written. Albert Lasker thought it was too valuable that he locked
it away in his vault for 20 years. It was then released and quickly sold a lot of copies.
Since it has been released I think it was released in the 1920s, 1923 if I'm mistaken. It sold
over 8 million copies. So let's jump right into the beginning of the book. Claude is talking
about what is this book, how did it come about. Every principle that he talks about in the book,
and the few references he just gave us in the chapter about the unique, weird results from
human psychology, just how you twerk one little thing and the results can be vastly different.
None of this is theory. It comes from you're reading the words of a practitioner. Somebody that
spent 12 hours a day, seven days a week for decades learning the art of copywriting of advertising
of sales. And so he says some of these agencies and their hundreds of campaigns have tested and
compared thousands of plans and ideas. All that he learned, he learned from trial and error.
The results have been watched and recorded, so no lessons have been lost. Individuals may come
and go, but they leave their records and ideas behind them. These become a guide to all who follow.
That's a very simple sentence, but a very profound idea. If you think about it, if you pick up this
book, right, and you're reading this book, you're having a one-sided conversation with a master of
his craft that's been dead almost a hundred years. So individuals may come and go, but they leave
their records and ideas behind them. I'm holding the record of his ideas of his career in my hand.
Nearly every selling question which arises in business is
accurately answered by many experiences. In a way, I interpret that sentence as what you're going
through is not unique. People in the past have gone through the same situations. They've run countless
different experiences and most of those lessons are put down in a book. I'm paraphrasing Mark and
Jason and why he reads so many biographies. There's just throughout history, it's thousands of years.
It's been really smart people. They ran all these experiments. They've learned all these things.
Somebody put them down in a book. We should probably pick up those books and read them, right?
The compass of accurate knowledge directs the shortest, safest, cheapest course to any destination.
He's giving you the why you would want to read it. We learn the principles and prove them by repeated
tests. We compare one way with many others. Backward and forward and record the results. That's why
this book is called scientific advertising. It's all about trial and error. I have an hypothesis.
I test my assumption and I record the records. Was that assumption accurate? No. Okay. Let me do
another test. Was it accurate? Yes. Okay. Let's double down on that. When one method invariably
proves the best, that method becomes a fixed principle. To reduce the cost of results even 1%
means much. So no guesswork is permitted. One must know what is best.
And he gets to the main point like why so many entrepreneurs and people building products,
advertising services like why is this important? Because our final conclusions are always based
on cost per customer. So that was an important concept in Hopkins Day. It's just as important
today. When you hear this concept that he's describing, most often you'll hear it is CAC customer
acquisition cost and the idea behind it is very simple. You should be constantly running experiments
on how much does it cost you to get each customer. And as you continue to run these experiments,
that cost should go lower and lower. The lower it goes, the more profit will be becoming. So that's
why so many people read books, read this book and use Hopkins principles because they're the
foundation on which you can build an extremely profitable business. And in some cases, he not only
do you make himself wealthy through these principles, but he made countless other clients
unbelievably wealthy through these principles. They become fundamentals for advertising in general.
They are universally applied. No wise advertiser will ever depart from these unvering laws. It's
very similar to what Ogovee just said. No one should have any, no one should get closer advertising
unless they've read this book seven times. We propose in this book to deal with those fundamentals,
those universal principles, to teach only established techniques. The lack of those fundamentals
has been the main trouble with advertising of the past. Each worker was a law to himself,
so what they were saying there, or what Claude is saying there, it's like everybody was running
these experiments, but no one was actually comparing the effectiveness. We're collecting all this
information and turning it into a scientific process, as opposed to just throwing darts against the
wall. All previous knowledge, all progress in the line was a closed book to him. So he's saying
the advertising man at some point might be running these experiments. He might be doing failures,
and when he could expedite and improve the effectiveness of his work, if he would just learn
from the experience, the past experience of others, right? It was like a man, and this is a perfect
metaphor for that. It was like a man trying to build a modern train without first ascertaining what
others had done, and then he talks about the importance of testing your assumptions. No one knows
If your product is going to succeed or not, this
This section reminded me a couple of weeks ago, maybe a couple of months ago, I read Sid
Myers' autobiography, and he was talking about, like, you know, I was making these, he's
a computer programmer, one of the first, like, one of the first, like, computer programmers
that made games, and he talks about, like, you know, I was building all these flight simulators,
like, they were selling, but I really wanted to make this comprehensive, gigantic, like,
a giant strategy game about the history of human civilization, and conventional wisdom
at the time was like, no, don't do that, Sid, like, just, no one's gonna buy a strategy
game.
What are you talking about?
Just stick to your flight simulators, right, because they're making money, and he went
with his instinct is, well, let me just build it, and let me see what happens, let me test,
you know, my assumption, I like this game, maybe other people will like it.
That one's of something over 51 million copies, one's of being his life's work, and so this
paragraph reminded me when I read it of what I learned from Sid Meyer.
It is hard to measure human idiosyncrasies.
The preferences and prejudices, the likes and dislikes that exist, we cannot say that
our product will be popular, but we know how to sell it in the most effective way.
The blind leading the blind is ridiculous.
It is pitiful in a field with such vast possibilities.
And so that little dig at the end, blind leading the blind, he's, throughout the book he compares
in contrast, this is the way I go about, my craft, this is the results I've gotten, and
these are the people that propose, they think we're in the same industry, they think we're
in the same genre, but we're really not, because they don't know what they're actually
doing.
There's a lot of that, like he's saying, listen, advertising is an admirable field, it
can grow larger if we can show results, stop guessing, stop doing advertising just for
the sake of advertising, actually prove to your customers that it's effective.
Now he gets into the main point where we talked about an advert last year, we talked about
David Olgravy, what is advertising?
Advertising is salesmanship, in their days of salesmanship in print, it is a way to derive
leverage for your business, so you don't have to employ thousands of individual salespeople,
so the note of myself is advertising is salesmanship leveraged.
To properly understand advertising, or to learn even its rudiments, one must start with
the right conception, advertising is salesmanship, its principles are the principles of salesmanship,
therefore every advertising question should be answered by the salesman standards.
Let us emphasize that point.
The only purpose of advertising is to make sales.
It is profitable or unprofitable according to its actual sales.
Treat it as a salesman, force it to justify itself, figure its cost and result, except
no excuses, then you will not go wrong.
The difference is only in degree, advertising is multiplied salesmanship.
It may appeal to thousands, while the salesman talks to one, and so that's another illustration
of the point that I made in the Lasker podcast where he wrote a bunch of different ways he
found ways to leverage, to exploit leverage.
One of them is the fact that he only dealt with handful of clients, he built strong relationships
with them, he wind up having access to extremely large advertising budgets, but he gets a percentage
of that, and he was able to increase the advertising budget because he was the first person
to realize, hey, instead of just being a broker, why don't we actually do the creative aspect,
know that our copywriting, combined our copywriting with the leverage that advertising in newspaper
and magazines gives us, this will increase the amount of sales that our customers get,
as they increase the amount of sales, they'll increase the advertising budget and will
make more.
And so in a sense, you could think of Albert Lasker as just straddling these two points of leverage,
and using them to build an enormous personal fortune.
A salesman's mistake may cost a little, an advertiser's mistake may cost thousands
times that much.
Be cautious.
A mediocre salesman may affect a small part of your trade, mediocre advertising affects
all of your trade.
So there's a bunch going on this page.
Do a small test before spending a large amount, selling in person is valuable experience.
So a lot of the insights that door door salesmen would learn, Claude applied that to advertising
in print.
Olga Vee also did this.
He sold door to door a bunch of like stove, like some kind of oven, and then use those
insights for it when he was building his own advertising firm.
I'm still reading my note to you.
Right as if the person was in front of you, the more you tell, the more you sell.
Okay, so let's see what's going on here.
Many of the ablest men in advertising are graduate salesmen.
The best we know have been house to house salespeople.
They may know little of grammar, nothing of rhetoric, but they know how to use words
that convince a fair answer to those questions avoids countless mistakes.
So when one tries to show off, so their whole point is like, there's a lot of people in
the industry that are trying to win awards or trying to entertain.
He's like, no, we're all about sales.
And so a lot of these insights that we're applying, like when the person was going door
to door trying to sell something, vacuum cleaner, stove, a bunch of knives, whatever they were
selling at the point, they weren't trying to entertain you.
Like it wouldn't have worked.
Like their time is limited.
They have to convince you to hand over some money or they can't keep doing that.
So Claude's point here is like, listen, think about treated as if that person's that prospect
is standing in front of you.
And so if you think about all of that, it's like before I write this word or the sentence
of his paragraph, would it help a salesman sell the goods?
Would it help me sell them if I met a Byron person?
And so his point is if you answer those questions, the correct, if you're able to answer those
questions correctly, it avoids countless mistakes.
And so stick to that.
Claude says when one tries to show off or does things merely to please, he is little likely
to strike a cord which leads people to spend money.
And he continues it.
Some people say, be very brief, people will read for little.
Would you say that to a salesman?
So his whole thing is just treat your ad as if you're on an individual basis, right?
With a prospect standing before him, would you confine him to any certain number of words?
That would be an unthinkable handicap, so don't do it in your ads.
So in advertising, the only readers we get are people whom are subject interest.
No one reads ads for amusement long or short.
Consider them as prospect standing before you, seeking information.
Give them enough information to get action.
So with countless questions, measure them by salesman standards, not by amusement standards.
And this is something he repeats over and over again.
This is one of the greatest advertising faults.
Adwriters abandon their parts.
They forget their salesman and try to be performers.
Instead of sales, they seek applause.
And so he goes back to this idea.
Like, everything we do is based on an individual level, right?
This is something that Steve Jobs said.
They're like, well, how are you, you know, Apple in the 70s, late 70s or early 80s is like,
you're just a, you sell to consumers.
How are you going to expand your market and sell to businesses?
And jobs is just like corporations are just collections of individuals.
So just treat them as individuals.
He applied that to the market for his computers.
Hopkins is applying that to ad advertising.
You don't think of people in the mess.
That gives you a blurred view.
Think of a typical individual who is likely to want what you sell.
Then he talks about the importance of research, the advertising man studies the consumer.
He tries to place himself in the position of the buyer.
His success largely depends on doing that to the exclusion of everything else.
And then this is also something we've mentioned multiple times.
Not only in the last year podcast, but also the podcast with the Ogreby podcast as well.
It's this idea where you'll see these ads forever.
They're written from the point of the perspective of a company.
And people are self interested.
They're not.
They don't care what you're, what you made.
They want to know how it affects them.
And so he said some ads are planned and written with a totally wrong conception.
These, they are written to please the seller.
The interests of the buyer are forgotten.
One can never sell goods profitably in person or in print when that attitude exists.
And so Claude's solution to this is you should be offering service.
You should be telling if you want somebody to give you money, you have to start with
what am I, what am I, what service am I offering you?
What am I doing for you for you to give me your money?
Not just, hey, buy my brand.
No one cares about you, right?
No one cares about the company or the product.
They have their own problems.
Remember the people you address are selfish as we all are.
They care nothing about your interests or your profit.
They seek service for themselves.
This is why Henry Ford has a famous quote that money comes naturally as a result of service.
First you find a way to serve people and then the second part is you find a way to increase
the number of people you serve.
Ignoring the fact is a common mistake and causing mistake in advertising.
Ads say in effect, buy my brand.
Give me the trade that you give to others.
Let me have the money.
This is not a popular appeal.
The best ads, ads ask no one to buy.
That is useless.
The ads are based entirely on service though good ads he means.
They offer wanted information, they cite advantages to users.
Some of these ads may seem altruistic, but they are based on the knowledge of human nature.
The writers know how people are led to buy.
Here again is salesmanship.
The good salesman does not merely cry a name.
He doesn't say buy my product, a brush maker, so he's given an example of somebody going
door to door trying to sell brushes.
This is all ties to like the human psychology that you present similar things in a slightly
different way and you get varying different results.
A brush maker has 2,000 door to door salespeople.
He is a normalcy successful in an industry which would seem very difficult.
So how did he do it?
And it would be if his men asked the housewives to buy, so they knock on the door, "Hey,
buy my brush."
But they don't.
They go to the door and say, "I was sent here to give you a brush."
"I have samples here and I want you to take one of your choice."
Okay, so they're giving away, they're saying, "Hey, I'm. "
I have a brush, it's in here, pick the one you want.
The housewife is all smiles and attention.
In picking the one brush, she sees several that she wants.
She is anxious to reciprocate the gift,
so the salesman gets an order.
I think the rest of the proximity principle,
Munger talks about this, it's well known
in this phenomenon in psychology.
There's a famous book that a lot of entrepreneurs read.
It's the psychology of influences of influence
by Robert Keildini, I think is his name,
but essentially the phenomenon is playing out in this example.
It's not, hey, knocking a door by a brush,
they're gonna slam the door, maybe get 10% of the customers
you would otherwise, but saying, hey, I have a brush,
no obligation, pick the one you want.
She picks the brush, then she's like, oh, wait,
it's the natural instinct for humans,
like once somebody does favor to reciprocate that favor,
and that's why this phenomenon also, you see,
and I don't know if it was in Keildini's book
that I learned this, I forgot where I heard this,
but you see this in people asking you for donations,
like the people at the airport, you'd see 'em,
why they used to be, they're in like monks,
they're in robes, it's a hairy Krishna or something like that,
what these people would do, and it went up working marvellously.
Somebody did like an in-depth research on how much money
they were making hundreds of millions
of dollars a year doing this.
They would like hand somebody like a flower,
or something like that, or like a rose petal,
whatever it was, I can't remember exactly what it was,
they'd hand it to you first, then ask for donation,
and it, you know, like doubles or triples the effectiveness,
somebody that was doing this research,
winds up finding out, like they went up tracking
what they were doing, so a person would be handed a flower,
right, maybe they give 'em a buck or two, whatever it was,
then they'd walk around the corner,
and they'd throw the flower in the trash.
The guy, the person doing the analysis of the sales method,
realized that the hairy Kirchner's had its down so much
that they knew that likely after they gave the gift,
they'd throw it away so they would recycle the flowers
by going through the trash and picking them back up
and reusing them.
So again, this is just something like a fundamental
king of human psychologists used over and over again,
that works all the time, so that's why you see so many brands
giving free samples, free trials, free demonstrations first
before asking for money.
And so he'll give us different examples
of different products used in the same principle.
The maker of an electric sewing machine
found advertising difficult, and he found advertising difficult,
'cause he's saying, hey, buy my machine, it doesn't work.
So on good advice, he ceased soliciting a purchase.
He offered to send to any home a sewing machine
for one week's use, free of charge, no obligation, okay?
With it would come a man to show how to operate it.
Let us help you for a week without cost or obligation,
said the ad, such an offer was resisteless,
and about nine in 10 of the trials led to sales.
So think about what he's saying.
He's like the same exact, from the product makers perspective,
it's the same, you're going to have to say the same thing.
I want to sell more of my product, right?
I try, I try option one, throw an ad,
look at this as a product, look what it does for you,
buy my product, right?
And then that limits, you know, you're not getting a lot of sales.
Option two, hey, I have such faith in my product,
let me serve you for a week without cost or obligation.
And I went up closing 90% of the people that respond.
This is why I said in the previous podcast,
like the stuff to me is just like indistinguishable from magic.
So it says, these are all common principles of salesmanship.
The most ignorant peddler applies them.
Yet the salesman in print very often forgets them.
He talks about his interest.
So again, Hopkins is going to repeat,
he's got a few main principles here,
and he's going to repeat the same stuff over and over again.
So it gets to our thick skulls.
People are self interested.
Don't forget this is what he's telling us.
People do whatever they do to please themselves.
Many fewer mistakes would be made in advertising
if these facts were never forgotten.
And now we see like why books like this would sell 8 million copies.
Because when you study what works,
you realize there's huge variance in results.
And it's the difference between going bankrupt and becoming wealthy.
A man who was selling a $5 product,
the replies, he's just a direct, like a mail order product.
The replies from his ad cost him $0.85.
Another man submitted an ad, which he thought was better.
The replies went, started to cost $14.20.
So if I sell something for $5,
and each cost of sale makes me,
only cost me $0.85, I can get wealthy
if there's enough people that want that product, right?
But if I'm selling something for $5,
it costs $14 to get you kind.
I'm out of the game real fast.
Another man submitted an ad,
which for two years brought replies
of an average of 41 cents each.
So that's his also point where the main point is hey,
there's ads that work, do not stop pulling them, right?
Before they work, before the effectiveness diminishes.
And sometimes you can, ads can run for a decade, two decades.
And the way to think about that is that the aphorism
for olgoby where he's like, listen,
you're not advertising to a standing army.
You're advertising to a moving parade.
Now, but that doesn't mean when you find a new,
an ad that works that you stop experimenting
and trying to improve the effectiveness of your advertising,
which is what Hopkins is telling us right here.
Listen, this guy was making, he's making good money
'cause his ads, he's getting a customer for $0.85
and he's selling for five bucks.
But then they did another test and they realized,
hey, now each customer is costing me half that much.
Now it's not $0.85, it's 41 cents
and this is where Hopkins ties it all together for us.
And consider the difference on a quarter million replies
per year in this guy's business.
Well, he's saving half the cost on 250,000 replies a year.
And he's gonna talk to us about the huge variance
and results.
Some people were paying for sales from two to 35 times
what they needed to cost before the Hopkins started
writing ads for them, right?
They were paying two to 30.
So my ad, what he's saying is like my writing was,
they were paying the people that they hired previously,
were charging them double to 35 times more
than the effectiveness of my advertising.
And what if they were making a profit at 35x, right?
And now he found a way to reduce their cost by 35 times.
It's insane.
A study of mail order advertising reveals many things
worth learning.
If continued, you know that it pays.
Study those ads with respect.
It is proven advertising, not theoretical.
It will not deceive you.
The lessons it teaches are principles
which wise men apply to all advertising.
And so now he goes back to this idea
where everybody tells you has to be short ad.
He's like, no, our testing reveals the opposite.
Mail order advertising tells a complete story
if the purpose is to make an immediate sale.
You see no limitations there on the amount of copy.
The motto here is the more you tell, the more you sell.
And it has never failed to be proven wrong
in any test we know.
And at this point in his career, he's done thousands,
maybe tens of thousands of tests.
So he goes back to this idea.
You should be studying successful advertising.
All right, ads.
Look at the ad for the Mead cycle company.
So they're selling bicycles.
These ads have been running for many years.
The ads don't change.
Mr. Mead told the writer, meaning him, Hopkins is funny.
He always referencing the writer.
It's like there's a way to say himself.
Mr. Mead told me that not for $10,000
would he change a single word for in his ads.
For many years, he compared one ad with the other.
And the ad you see today are the final results
of those experiments.
You may not like them.
You may say they're unattractive, crowded,
or hard to read, anything you will.
But the test of results has proved that those ads
are the best salesmen those lines have yet discovered.
And they pay.
And so that's another way to, for him,
to just pound into this, or expound on this point
that he makes over and over again.
Like, you've got to test your assumptions.
You cannot assume that you are correct.
Just prove it.
And he's like, the way to test assumptions
is not around a table in an office, in a meeting.
He just run a test and then do it again.
So he says, now he's talking about the importance of headlines.
And we're already, over a third away through the book.
It's written very quickly.
Like he does not, there's no fluff in his book whatsoever.
So he says, the importance of headlines.
Like if you can't get somebody's attention,
the headline is the vehicle to get somebody's attention, right?
And you can't sell somebody that's just not paying attention to you.
And so if you have a problem, the problem he's trying to solve
is this an ads can be ignored.
And the right headline is what solves this problem.
People do not read ads for amusement.
They don't read ads which, at a glance,
seem to offer nothing interesting to them.
Always bear that fact in mind.
People are hurried.
The average person worth cultivating has too much to read.
They skip three-fourths of the paper,
which they are paying to get newspapers.
They are not going to read your business talk
unless you make it worth their while
and let the headlines show it.
So don't bury the lead, right?
And so he's going to tell like the headline
is the most important part.
The writer of this chapter, meaning me again,
spends far more time on headlines than on writing the ad.
He often spends hours on a single headline.
Often scores of headlines are discarded
before the right one is selected.
The identical ad run with various headlines
differs tremendously in its returns.
It is not uncommon for a change in headlines
to multiply returns by five or 10 times over.
So then he gets into more specifics.
And one of his specifics is be specific.
He's like, don't talk about, don't avoid platitudes.
Don't use generalizations.
They're so commonly used, like they have no meaning.
Pick a freaking number.
Don't say I'm in the best in the world.
Everybody knows this, and that's not true.
Platitudes and generalities roll off
the human understanding like water from a duck.
They leave no impression whatsoever.
To say, best in the world, lowest price and existence, et cetera,
is at best simply claiming the expected.
And then also can--
lead people to not believe you. They lead readers to discount all the statements that you make.
A man inclined to superlatives must expect that his every statement will be taken with some caution.
But a man who makes a specific claim is either telling the truth or not. A definitive claim is
usually accepted. Actual figures are not generally discounted. Specific facts when stated have their
full weight in effect. The weight of an argument may often be multiplied by making it specific. That's
the most important sentence in this chapter. A dealer may say our prices have been reduced without creating any impression
at all. But when he says our prices have been reduced 25%, he gets the full value of his announcement.
A male order advertiser sold women's clothing. For years he used the slogan "Lowest Price in America."
His rivals all copied that. These claims became so common to every advertiser that they became
commonplace and thus for not effective. Then under Abel advice he changed the statement to
"Our net profit is 3%." So he's saying "Lowest Price in America doesn't work. Our net profit is
3%." A specific example. That was a definitive statement and it proved very impressive.
No one could be expected to do business on less than 3%. The next year the business made a
sensational increase. So he's talking about there's a lot of these industries where everybody's
advertising the competition is brutal. And so you've got to use specific one way to stand out
is using specific claims. So he's talking about shaving soaps. Shaving soaps have long been
advertised. Abundant Lather does not dry on the face, acts quickly. But everybody uses those claims,
so they're not effective. So a new entry comes into the field. He says a new maker came into the field.
He said, "Multiply's itself in Lather 250 times. Softens your beard in one minute.
Maintains its creamy fullness for 10 minutes on your face." And his advertising was wildly
successful. These are all specific claims in a sea of sameness, right? He's going to give us a
bunch of examples. Makers of safety raises a long advertised, quick shave. And then one maker
advertised a 78 second shave. He gets the business. Use the world over is a very elastic claim.
A lot of products say that. Then one advertiser said, "My product is used by people's of 52 nations.
He gets the business." And so he wraps up this chapter here. The difference is vast. If a claim
is worth making, make it in the most impressive way. So now he's going to talk about, he says the
headline of the chapters tell your full story. And this is about the more you sell, the more you tell.
It doesn't mean you go on and just make it 10,000 words. If you can tell the full story in 2000,
the point is you're not going to get their attention many times. So tell your full story. And you
can do that in 2,000 words, doing 2,000 words. If you can do it 500, doing 500. But don't
like, "Oh, I have 280 characters and then I'm done." No, that's not. You're wasting your advertising
money. When once you get a person's attention, then is the time to accomplish all you ever hope
to do with him. Bring all your good arguments to bear. Cover every phase of your subject.
One fact appeals to some, one to another. Omit anyone and a certain percentage will lose the fact
which might convince. People are not apt to read successive advertisements. No more than you read
a news item twice or a story twice. In one reading of an advertisement, one decides for or against
the proposition. So present the reader when you once you get him every important claim you have.
This is why he reduces everything he's saying here to the more you sell them or you tell.
The best advertisers do that. Gradually, they accumulate a list of claims important enough to use
and all those acclaims appear in every ad thereafter. Some advertisers go so far as to never change
their ads. This is what I just heard from earlier. Some mail order ads have been running year after
year without diminishing returns. I think the example Ogreville uses in his books is like,
you know, it's very common. Like when people get married, they get a house. And so maybe your client
you're something washing machines, right? And you realize that newlyweds are a large aspect of that
market. Well, guess what? People get married this year. They're going to get married next year
and they're going to marry 10 years from now. Those people will probably want washing machines too,
so don't change the ad. Is the specific example I'm pretty sure he used in his book.
The constant returns come from getting new readers. In every ad, consider only new customers.
People using your product are not reading your ads. They've already read and have decided.
Any reader of your ad is interested. Else, he would not, he or she would not be a reader.
You are dealing with someone willing to listen. So do your level best. That reader, if you lose them
now, may never again be a reader. Okay, so now this is really interesting. The way to think about what
he's explaining to us here is sell painkillers, not vitamins. And this principle applies, these are
notes I'm for myself, but this principle applies to which benefit you choose to highlight and how to
make the market for the same product bigger. Costy mistakes are being are made by blindly
following some ill-conceived idea. A product for instance, instance, may prevent a disease.
Prevention is not a popular subject, however much it should be. It's admirable, but people do not
respond to it as what he's telling us. People will do much to cure trouble, but people in general
will do little to prevent it. This has been proved by many disappointments. Sell painkillers, not
vitamins. And he talks about using this concept and what you choose to show to a toothpaste may
prevent, may tend to prevent decay. It may also beautify teeth. Tests will show that the latter
appeal, meaning I have, if you use my product, you'll have beautiful teeth, right? Is waste, as many
times as strong as the former, meaning that it's preventing decay. The most successful toothpaste
advertiser never features tooth troubles in his headlines. They show the desired effect. Beautiful,
bright, sparkling, white teeth. A soap may tend to cure eczema. It may at the same time
improve complexion. So this is what I mean about you have to be very careful about choosing the
benefit that you're promising to your customer because you may be artificially limiting the amount
of customers you can get. So you may have prevented or should be may have invented a cure for eczema,
but it's also as a byproduct that improves your complexion. Do not advertise it as a cure for
eczema. The eczema claim may appeal to one in a hundred while the beauty claims would appeal to
nearly all to even mention the eczema claims may might destroy the beauty claims. Then he goes into
what it takes to get really good at what what he's doing. And he's like listen, you got to put in
most people are not willing to put in the work. There's no substitute for the hard work and the
time and the effort. You're going to have to read and say he talks about it like before you can
advertise a product. You get a really study and and understand it. Sometimes this process can take
weeks. Sometimes it's take months. Let me use an example of Ogavi. He had he he got the Rolls Royce
account. And I think it was like three weeks of reading thousands of pages and he came across
this this random line in I think it was like an engineering handbook for Rolls Royce like an
internal handbook. And it said at 60 miles an hour, the loudest noise in the news Rolls Royce
comes from the electric clock. That he used that as his as his headline. And it came from research.
So this is what Hopkins is saying the same thing. An ad writer to have any chance to success
must gain full information on a subject. The library of an ad agency should have books on every
product that calls for research. A painstaking advertising man will often read for weeks on some
problem which comes up. Perhaps in many volumes, he will find few facts to use. But some but in
some one fact, maybe the keynote of success, which is the Rolls Royce Ogavi example, right?
Jean, now this is crazy because I feel like I've been quoting Izzy Sharpe a lot since I learned
about what he said. And so this is Hopkins. Genius is the art of taking pains. The advertising man
who spares the midnight oil will never get very far. Izzy Sharpe, he's building four seasons,
right? One of the premier luxury brands of world ever seen. He said excellence is often the
capacity of taking pains. So that's what Izzy said. What Claude said genius is the art of taking
pains. And he wraps up saying this is not for the lazy. The uninformed would be staggered
to know the amount of work that evolved in a single ad. Weeks of work sometimes. The ad seems
so simple, and it must be simple to appeal to simple people. But behind that ad may lie
reams of data, volumes of information, and months of research. This is no lazy man's field.
Skipping ahead, he also got away where he could just, we talked about this idea. You got to
business, just collections of people. You start with the individual and he just has a way to
just express ideas and, you know, one or two sentences. We must consider individuals. We cannot
go after thousands of men until we learn how to win one. This is the idea that a demo, a sample,
it's just the best sales techniques that's ever been invented. There's nothing better
way to sell your product. He used the example of the guy with the horse or the electric typewriter,
whatever that machine was, sewing machine, and so the entire chapter is like you got use samples.
It's just, it multiplies the effectiveness of your ads. It pays for itself many times over
people and do this because I'm like, oh, I'm giving away my product or how do I afford to pay for?
He's like, you afford to pay for it in the sales that happen in the future as a result of them
using your product. The product itself should be its own best salesman. Not the product alone,
but the product plus a mental impression and atmosphere which you place around it.
Samples are of prime importance. However expensive, they usually form the cheapest selling method.
examples serve numerous valuable purposes.
They enable one to use the word free in your ads.
That, and why is that important?
Because if you can use the word free,
that multiplies readers.
The samples pay for themselves in multiplying
the readers of your ads.
So this point is, if you have two identical products,
or two identical ads for the same product,
one headline talks about, you get something free.
The other headline doesn't.
Way more people are going to read the one that says free.
And so therefore, the demo pays for itself
because it increases the effectiveness,
how many people actually read the ad,
the more people read it, the more people apply.
But his point is, you don't give,
just like, you don't just mass mail samples
of your product to just random people.
They have to ask for it.
And he's like, you're cheapening it.
If you just, if it shows up on the door
without any kind of, like, introduction to the client.
And so you should introduce your product
in a favorable way, using the demos,
like almost like a leveraged salesperson, right?
So you introduce your product in a favorable way,
and you do that through storytelling.
And the story obviously comes from your ad.
He says, the product is cheapened
if it is not introduced in a favorable way.
Many advertisers do not understand this.
They supply thousands of samples to dealers
to be handed out as they will.
You should give samples to interested people only.
They should ask for it, right?
Give them only to people who exhibit that interest
by some effort.
Give them only to people whom you have told your story.
Now he goes into the importance of testing
where towards the end of the book already,
this is, it just goes by really, really quick.
Like this book you can read, definitely in a day,
you know, maybe, definitely over weekend easily,
depending on how much notes and time you have.
But this is just the summary.
It's the world's fullest surprises.
And always has been, and always will be,
there are many surprises in advertising.
A project you will laugh at may make a great success.
A project you are sure of may fall down,
all because tastes differ so much.
None of us know enough people's desires
to get an average viewpoint.
So the solution is to test.
And the test sometimes proves, hey, it saves you money
'cause I thought I was gonna be successful and I'm not.
And in other cases, you get a surprisingly massive response
that you didn't expect.
We let the thought, and he talks about like,
cap your downside, right?
Don't just do, don't, don't have an idea.
And then like, I'm putting my entire advertising budget
on this idea, cap your downside and then test.
He repeats this because many spend a lot
without testing first and they go broke.
So he's saying, instead of going,
before I go nationwide, I'll test my ad,
maybe in a few different markets.
And I'll cap it at a couple thousand dollars.
So if that doesn't work out, usually I get
most of the money back if not all the money back.
But if it doesn't work out, I say,
you know, I spent a couple thousand instead of a couple
of millions and then put in company jeopardy.
We let the thousands decide what the millions will do.
We make a small venture and watch the cost and the result.
When we learn what a thousand customers cost,
we know almost exactly what a million will cost.
When we learn what they buy, we know what,
when we know what the thousands buy,
we will know what the millions will buy.
From the few thousands,
we learn what the millions will do.
So he talks about the people testing.
He is playing on the safe side of a hundred to one shot.
If the product is successful, it may make him millions.
If he's mistaken about it, the loss is trifles.
So I kind of just ran over my own point there
or clouds point there rather.
These are facts we desire to emphasize and spread.
So he's like, stop doing,
I've seen a bunch of people do a bunch of dumb shit.
Don't do, don't repeat their mistakes.
These people go out of business.
There's no reason for that.
So it was what he's telling us.
All of our largest accounts are now built in this way
from very small beginnings.
Rear area, it's this point,
even if you have a great campaign,
that you never stop testing, ever.
Costs can always go lower,
so you gotta keep running these tests.
We try test campaigns to,
we do test campaigns to try out new methods
of on already successful advertising.
Thus we constantly seek better methods
without interrupting already proven plans.
If in five years for one food advertiser,
we tried over 50 separate tests.
Every little while we found an improvement,
so the result of our advertising constantly grew.
At the end of five years, we found the best plan of all.
It reduced our cost of selling by 75%.
So you already had an effective ad campaign.
Now you found something that you weren't expecting
and you did a suit testing to trial and error,
is now reduced your cost by 75%.
Congratulations, you're wealthy.
That is, it was four times more effective
than the best plan used before.
Try out plan after plan after plan
to constantly reduce the cost.
So then he's talking here,
you should be advertising the result.
They don't, people do not buy products, they buy solutions.
Show health, not sickness.
Don't show the wrinkles you propose to remove,
but the face as it will appear.
Your customers know all about wrinkles.
Show pretty teeth, not bad teeth.
Talk of gum coming good conditions,
not conditions that exist.
We are all attracted by sunshine, beauty,
happiness, health, and success.
Point the way to them, not the way out of the opposite.
Advertise the result is a way to think
about what he's telling us here.
He's gonna give another example of how you stand out.
So you got a bunch of people,
all trying to go up to the same customers
with similar products.
You can differentiate just the way
you are by proposing your solution.
And this is, the sales technique of the century.
This is what S.D. Lauder built her massive business empire
out of.
Last time I looked, she's been dead for quite a while.
She started that business in the year 40s.
I think it's somewhere in the founders 130
somewhere in there where I read her autobiography.
She's completely slept on as overlooked as an entrepreneur.
If you could reincarnate her today, bring her back.
She'd be kicking almost every other entrepreneur's ass.
She was extremely, extremely gifted.
Last time I looked, her company was doing something
$18 billion in revenue.
Something like that.
Let's number like that, right?
But she talked about one of the keys to her success
is the gift with purchase,
which the reason I referenced this is inner autobiography,
which is extremely easy to read, by the way,
and full of useful information.
She says that was the sales technique of the century.
It's what the cornerstone she built her empire off.
If she did not give away free samples,
you bought something and then she gave you an extra gift
and that college you coming back and back
and endured this goodwill that she cultivated
over the entire lifetime of that customer.
And so this is a way to stand out
where we see somebody using that idea
a couple of decades before she did, right?
A mail order advertiser offered a catalog.
The inquire might send out for three or four similar catalogs.
Okay, so I have a catalog,
but there's three or four other companies that have a catalog too.
He had that competition, so he had competition making a sale.
So he wrote a letter when he sent his catalog
and enclosed a personal card.
So you have not purchased anything yet, right?
You inquire, you say you want my catalog.
I'm gonna send you the catalog,
just like my three or four competitors do,
but I'm gonna differentiate myself.
I'm gonna stand out by giving you a personal card
and this is what I write.
You are a new customer and we wanna make sure you are welcome.
So when you send your order, please enclose this card.
The writer wants to see that you get a gift with the order.
Something you can keep.
That is, Estee Lauder's sales technique of the century.
That is a gift with purchase is what he's saying.
What, and so now Hopkins is analyzing the psychology behind
this simple little card that magnified this person's sales
and had him out compete.
People that are very similar to him.
They offer a rouse curiosity.
It gave preference to his catalog.
Without some compelling reason for ordering elsewhere,
the customer would send the order to him.
The gift paid for itself several times over
by bringing larger sales per catalog.
Now, that's wild.
Check this out.
The gift paid for itself several times over
by bringing larger sales per catalog in her, excuse me,
my voice is going in her autobiography.
She talks about, she's like, I'm not.
She reduced her advertising budget
and because they had a limited amount of money
at the beginning of the company, right?
So she reduces their advertising budget
and she says instead of spending money in advertising,
let's spend money on manufacturing more products
that we can give away.
And what she found was that the gift with purchase
spending every dollar that she spent on giving way stuff
as opposed to advertising,
it outperformed the money spent on advertising.
And so that's, these people constantly becoming a back.
And so I just thought that was like a very interesting idea.
It's like, okay, I'm going to limit how much
I'm spending on advertising and I'm just going to cultivate
and my already existing customer base.
And they're going to grow because now they come back
but they tell other people about the products I have for sale.
And so Hopkins talks about the return on that investment,
the gift paid, if you think about it not as a gift
but as an investment or even maybe you think about
as marketing or advertising whatever you want to put on it,
the gift paid, the marketing paid,
the advertising paid for itself several times over
by bringing larger sales per catalog.
And then he closes with the chapter called Good Business
and he's just talking about like the stuff
we've talked about here.
It's just a very beginning days.
It's only going to grow a more important time.
A rapid stream ran, and this is a very fascinating
analogy that really in my mind crystallized what he's telling us.
A rapid stream ran by my boyhood home.
The stream turned a wooden wheel and the wheel ran a mill.
Under that primitive method,
all but a fraction of the stream's potential went to waste.
Then someone applied scientific methods to the stream,
put in a turbine and dynamoes.
Now with no more water, no more power,
it runs a large manufacturing plant.
We think of that stream when we see wasted advertising power
and we see it everywhere, hundreds of examples,
enormous potentials, millions of circulation,
used to turn a mill wheel while others use that same power
with manifold effect.
And that is just a perfect analogy to end it.
You're advertising the way you market to customers,
you can be the--
the same stream, right?
You can have a wooden wheel, and you can run a mill,
or you can have a turbine and dynamose,
and you can run a manufacturing plan.
That sentence, while others use that same power
with manifold effect, and that is where I'll leave it.
I think it's a no brainer to buy this book.
You can buy the paper wrap version,
if you, I think it's less than $10, it's insane.
But if you buy, if you're interested
in reading his autobiography, the My Life in Avertising,
if you go on Amazon and search for the Kindle version,
you can find a version of his autobiography
where you get this scientific advertising book
for free as well.
But in either case, whether you read the autobiography,
or I would read this book no matter what,
I do think the autobiography is also interesting
because it talks about the lessons that are in this book,
applied to his actual life.
And I'm pretty sure this founder's 170,
if you haven't gone back to listen to that,
I will leave a link in the show notes
if you want to support the podcast at the same time,
and by the book, use that link.
That is 207 books down 1,000 to go,
and I'll talk to you again soon.
Podcast Summary
Key Points:
Human psychology reveals consistent principles that, once understood, remain effective across time and cultures.
Specific, measurable claims in advertising—like "our prices are reduced by 25%"—are far more persuasive than vague platitudes such as "best in the world."
Offering free samples or trials dramatically increases ad engagement and sales by leveraging human reciprocity and curiosity.
Advertising must be grounded in salesmanship principles
Successful advertising relies on testing, experimentation, and data—proving effectiveness through real results, not theory or guesswork.
The most effective ads are tailored to individual prospects, treating each reader as a real person with specific concerns and desires.
Cost per customer (CAC) is critical; reducing it through tested, efficient methods leads to greater profitability and long-term success.
The best advertising is built on proven, repeatable principles derived from real-world experimentation, not creative flair alone.
Summary:
Claude Hopkins’ *Scientific Advertising* presents a practical, data-driven approach to advertising grounded in human psychology and real-world sales results. The core idea is that advertising is fundamentally salesmanship—focused on serving the customer’s needs rather than promoting a product. Key principles include using specific, measurable claims over generalizations, offering free samples or trials to drive engagement, and treating every ad as a personal interaction with a real prospect.
Hopkins emphasizes constant testing and experimentation: small-scale trials allow advertisers to evaluate effectiveness, reduce costs, and avoid wasting budgets. For instance, changing a headline by just a few words can multiply returns by five or ten times. , beautiful teeth instead of preventing decay)—dramatically improve conversion.
Long-term success comes from continuous refinement, with proven campaigns being iteratively improved over time, reducing customer acquisition costs by up to 75%. Hopkins argues that advertising is not about creativity for its own sake, but about applying scientific, tested methods to achieve measurable results. His work remains foundational because it shows that effective advertising is built on observation, trial, and the understanding that people respond to concrete, personal benefits—never abstract promises.
The book’s enduring value lies in its practical, proven strategies that have stood the test of time and become essential tools for modern marketers.
FAQs
Specific claims like 'our prices are reduced by 25%' create measurable, verifiable statements that build trust. Generalities like 'best in the world' are discounted as vague or unprovable, while specific facts carry more weight and are more likely to influence decisions.
Free samples create immediate value and trigger reciprocity, making people more likely to engage with the ad. The act of receiving something free increases interest and leads to higher conversion rates, often paying for themselves through increased ad exposure and sales.
Testing allows advertisers to validate assumptions with real data, avoid costly mistakes, and identify which strategies actually work. Small-scale tests reduce risk and provide insights on customer costs and responses, enabling better scaling and optimization.
Advertising is fundamentally salesmanship applied at scale—its purpose is to generate sales. Like a salesman, it must focus on solving a customer’s problem, offering tangible value, and driving action, not just creating entertainment or appealing to vanity.
People are motivated by positive outcomes, not problems. Ads that highlight desired results—like 'bright, sparkling teeth' instead of 'removing stains'—resonate more deeply and create stronger emotional connections, leading to higher conversion rates.
Understanding human behavior—like the desire to reciprocate favors or respond to curiosity—allows advertisers to design messages that trigger real emotional and behavioral responses, making ads more persuasive and effective.
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