---
title: Claude Hopkins — who he was | RGM® Glossary
url: https://realgrowthmatters.com/glossary/claude-hopkins/
updated: 2026-06-10
source_html: https://realgrowthmatters.com/glossary/claude-hopkins/
---

# 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.

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](https://en.wikipedia.org/wiki/Claude_C._Hopkins).

## Usage trends

Search interest for this term over the last five years:

[View interest-over-time on Google Trends →](https://trends.google.com/trends/explore?q=claude%20hopkins&date=today%205-y)

## 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.

## Related tools & calculators

- tool[Brand lift forecaster](/tools/brand-lift-forecaster/)

## Resources & people to follow

- book*Scientific Advertising* — Claude Hopkins
- book*My Life in Advertising* — Claude Hopkins
- referenceWikipedia — Claude C. Hopkins

Curated, non-competitor resources verified per term.

## Related training

- module[Growth marketing foundations](/training/growth-marketing-foundations/)

## Disciplines

Areas of marketing where claude hopkins is a core concern:

[Advertising history](/training/growth-marketing-foundations/)[Brand strategy](/training/growth-marketing-foundations/)

## Read next

## Related terms

[David Ogilvy](/glossary/david-ogilvy/)[A/B test](/glossary/ab-test/)[Conversion rate](/glossary/conversion-rate/)[AIDA](/glossary/aida/)[ROI](/glossary/roi/)

## Sources

1. trends[Google Trends — "claude hopkins"](https://trends.google.com/trends/explore?q=claude%20hopkins&date=today%205-y)