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How to Make Ads That Sell: Scientific Advertising by Claude Hopkins

Claude Hopkins was the greatest copywriter of all time. His ideas were so valuable that when he wrote them down in a book (Scientific Advertising) the founder of his advertising firm locked the manuscript in a safe for 20 years. When the book was finally published it sold over 8 million copies. David Ogilvy said that nobody should work in advertising until they had read the book seven times. This episode is what I learned by reading Claude Hopkins' autobiography My Life In Advertising and his legendary book Scientific Advertising: https://amzn.to/4hVid0t Made possible by: Ramp: ⁠⁠https://ramp.com⁠⁠ Applovin: ⁠⁠https://www.applovin.com Vanta: ⁠⁠https://vanta.com/founders Some of my favorite quotes: 0:00 — "Any man who by a lifetime of excessive application learns more about anything than others owes a statement to his successors." 5:12 — "The man who works twice as long as his fellows is bound to go twice as far, especially in advertising." 5:30 — "If I have gone higher than others in advertising or done more, the fact is not due to exceptional ability but to exceptional hours." 6:48 — "To poverty I owe the fact that I never went to college. I spent those four years in the school of experience instead of the school of theory." 9:08 — "Which is work and which is play? If a thing is useful, they call it work. If it's useless, they call it play. But one is hard as the other. All the difference I see lies in the attitude of the mind." 9:32 — "I came to love work as other men love golf. I love it still. The love of work can be cultivated just like the love of play." 9:58 — "We do best what we like best." 13:05 — "A good product is its own best salesman. It is uphill work to sell goods without samples." 15:00 — "We must never judge humanity by ourselves. The things we want, the things we like may appeal to a small minority." 15:23 — "We must submit all things in advertising to the court of public opinion." 17:48 — "Some of the greatest successes I have ever known in advertising were ignorant men. One wrote copy which would induce a farmer to mortgage his barn to respond, but every sentence had to be edited for grammar." 20:23 — "John Powers created a new concept of advertising. He told the truth, but told it in a rugged and fascinating way." 25:47 — "Study salesmen, canvassers, and fakers if you want to know how to sell goods. No argument in the world can ever compare with one dramatic demonstration." 26:35 — "The average salesman seeks favors. He seeks profit for himself. His plea is, 'Buy my goods.' He makes a selfish appeal to selfish people, and of course, he meets resistance. I was selling service." 28:45 — "We must treat people in advertising as we treat them in person." 31:23 — "Others have never told this story. It will startle everyone in print. I gave purity a meaning." (On Schlitz Beer jumping from 5th to 1st.) 32:03 — "Tell the pains that you take to excel. The maker is too close to his product. He sees in his methods only the ordinary." 34:08 — "The greatest two faults in advertising lie in boasts and in selfishness. People will listen if you talk service to them. They will turn their backs when you seek to impress an advantage for yourself." 41:23 — "People will do anything to cure a trouble, but little to prevent it. Prevention offers slight appeal to humanity in general. They want to be told of rewards." 1:01:30 — "Genius is the art of taking pains. The advertising man who spares the midnight oil will never get very far. This is no lazy man's field."

David Senrahost
Aug 23, 20261h 3mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Claude Hopkins’ sales-driven rules for ads: service, proof, and headlines

  1. David Senra walks through Claude Hopkins’ core principles from “Scientific Advertising” and “My Life in Advertising,” emphasizing that Hopkins saw advertising as salesmanship in print.
  2. A repeated theme is that superior outcomes come from unusual work ethic—long hours, deep research, and learning through many small mistakes without repeating them.
  3. Hopkins’ framework centers on the customer: avoid boasting, avoid selfish appeals, and present your message as service tailored to an individual rather than a faceless crowd.
  4. The episode highlights practical levers Hopkins relied on: demonstrations and requested sampling, telling compelling true stories about product-making effort, and using headlines to attract the right audience.
  5. Hopkins is portrayed as relentlessly empirical—warning against personal preference and urging advertisers to let public response and testing determine what works.

IDEAS WORTH REMEMBERING

5 ideas

Hopkins attributes advertising mastery more to “exceptional hours” than exceptional ability.

He describes working extremely long hours for years, and frames his edge as repetition, volume, and accumulated learning from both successes and mistakes rather than unusual talent.

Don’t rely on your own taste; let results and public response decide.

He argues that personal preferences are a poor guide because what you like may appeal to only a minority, so you must “submit all things in advertising to the court of public opinion,” which he equates with testing and proof.

A strong product demo (or sample) can do what persuasion can’t.

From selling his mother’s silver polish, he learned that showing and letting people experience the product drives conversion far more than talk alone, and he repeats that dramatic demonstration beats argument.

Service-based messaging outperforms “buy my brand” messaging.

He stresses that “boasts” and “selfishness” create resistance, while advertising should feel like helpful salesmanship that centers the buyer’s interests and makes the offer feel like service rather than a plea.

Treat people as individuals, not a mass audience.

He insists advertising should be written as if speaking to one person with a specific need—responding to what they asked for (like the sewing-machine-only catalog example), not blasting generic materials at everyone.

WORDS WORTH SAVING

5 quotes

There is a book written by Claude Hopkins, which is called Scientific Advertising, okay? It has sold like 8 million, 10 million copies. It's probably the most important book ever written on advertising if you factor in who read the book and then what it influenced in, to build after that.

— David Senra

Albert Lasker put the book into a safe for 20 years.

— David Senra

I just wanna tell you the fact that this guy probably spent more time, he's arguably the greatest copywriter in history, and he spent more time doing that than anybody else.

— David Senra

I think entrepreneurship is the most fascinating subject in the world. I think founders, people that create things that did not exist in the world, are the most important people in the world.

— David Senra

I am still more interested in entrepreneurship today than I was when I started. I don't think I'll ever not be interested in it. How the hell you make that subject boring? It's insane to me.

— David Senra

Advertising as salesmanship in printWork ethic and “exceptional hours”Testing and the “court of public opinion”Product demonstration and samplingService-based positioning vs boastingIndividual-focused messaging vs mass marketingProcess stories: “tell the pains you take to excel”

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