Scientific Advertising was written a century ago, and most of its advice still applies. Hopkins worked for the Lord & Thomas agency in the early 1900s, running campaigns for products like Schlitz beer, Pepsodent toothpaste, and Palmolive soap. His approach was radical for the time: he insisted on measuring the results of every ad and letting data, not opinions, guide decisions.
The book covers sampling (give people a free trial and track how many convert to paying customers), headlines (the headline is the most important element because most people read nothing else), specificity (saying “our product was tested 137 times” is more credible than “our product was tested extensively”), and the psychology of selling (people buy based on self-interest, not because your company is great).
Hopkins also introduced the concept of split testing, running two different versions of an ad simultaneously to see which performed better. This is now standard practice in digital marketing, but Hopkins was doing it with mail-order coupons in the 1920s.
The writing is clear and direct. Hopkins wastes no words. Each chapter is a few pages and makes one point with examples. The book reads in about an hour, and most of the principles transfer directly to modern online marketing. Replace “newspaper ad” with “landing page” and “mail-order coupon” with “conversion rate” and the advice holds up.
David Ogilvy, who is often called the father of modern advertising, cited Hopkins as his primary influence. Alex Hormozi and Gary Halbert have also recommended it. The book is in the public domain and available free online, but the physical editions are cheap.
For founders doing their own marketing, which is most early-stage founders, this is one of the most efficient reads available. The ratio of useful information to page count is higher than almost any other marketing book. What it lacks in modern examples it makes up for in timeless principles that work regardless of the medium.
