One day, a young intern asked Leo, “What’s the secret to a great ad?”
Then, a colleague handed him a worn, coffee-stained manuscript. “Read this,” she said. “It’s by a man named . He doesn’t guess. He tests .” Tested Advertising Methods John Caples .pdf
Leo opened to a random page and saw a headline that would haunt him for days: Below it, Caples’ dry, factual voice explained: “This headline succeeded because it promised a dramatic transformation. We tested it against 19 others. It outsold the second-best by 400%. Not opinion. Fact.” One day, a young intern asked Leo, “What’s