Who was Claude Hopkins?

American copywriter (1866-1932) who pioneered tracked, test-driven advertising and wrote Scientific Advertising (1923).

What is Claude Hopkins known for?

Coupon-tracked testing, Pepsodent's habit-building campaign, Schlitz's purity story, and 'advertising is salesmanship in print.'

Why does Hopkins matter today?

Modern A/B testing and direct response are his method with better instruments — measure response, not applause.

Growth Marketing Glossary

Claude Hopkins

/klɔd ˈhɑpkɪnz/proper noun

A century before A/B tests had a name, Hopkins was running them with coupons — advertising as science, 1923.

Portrait mark — Claude Hopkins

Name: Claude C. Hopkins
Lived: 1866-1932
Key work: Scientific Advertising (1923)
Method: Coupon-tracked testing

Forms & parts of speech

Hopkins · proper noun

Copywriter; by extension his test-everything school.

"Run it like Hopkins would — two versions, tracked codes, let the returns decide."

Who he was, in plain terms

Claude Hopkins was an American advertising pioneer who treated copy as a measurable instrument: keyed coupons told him exactly which ad, headline, and offer pulled. He made Pepsodent a habit (popularizing tooth-brushing itself), built Schlitz's "purity" story from a brewery tour, and set down his method in Scientific Advertising (1923).

The key ideas

Advertising is salesmanship in print, accountable to results; test one variable at a time with tracked responses; specifics persuade ("germs" was vague — the "film on teeth" was a campaign); claims everyone could make become yours if you say them first; and curiosity plus self-interest move people, not cleverness. He measured a century before the click existed.

Why he still matters

Every A/B test, tracked link, and direct-response funnel runs on Hopkins' logic with better plumbing. Ogilvy ordered every new hire to read Scientific Advertising seven times — "nobody should be allowed to have anything to do with advertising until he has read this book." The instruments changed; the epistemology didn't.

Worked example. A growth team debates two landing pages on taste. The Hopkins move: ship both with tracked sources, one variable apart, and let response decide — opinions retire, returns rule. The habit compounds into a testing culture, which is exactly what the man was selling in 1923 for the price of a coupon.

Failure modes to watch. Testing trivia while the offer is the problem; celebrating cleverness over response; and forgetting his other lesson — that specifics and preemptive claims do the persuading before any test runs.

Synonyms & antonyms

Synonyms

Claude HopkinsHopkins

Origin & history

Born 1866 in Spring Lake, Michigan; rose from bookkeeper to the highest-paid copywriter of his era at Lord & Thomas under Albert Lasker. Scientific Advertising (1923) codified his coupon-tracked method. Died 1932.

Etymology: source.

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Common questions

Who was Claude Hopkins?: American copywriter (1866-1932) who pioneered tracked, test-driven advertising and wrote Scientific Advertising (1923).
What is Claude Hopkins known for?: Coupon-tracked testing, Pepsodent's habit-building campaign, Schlitz's purity story, and 'advertising is salesmanship in print.'
Why does Hopkins matter today?: Modern A/B testing and direct response are his method with better instruments — measure response, not applause.

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Resources & people to follow

bookScientific Advertising — Claude Hopkins
bookMy Life in Advertising — Claude Hopkins
referenceWikipedia — Claude C. Hopkins

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