Claude Hopkins, a marketing pioneer, masterfully used a clever ad campaign that subtly made people self-conscious about their teeth, sparking a widespread concern about that unseen “film.” While he knew this would convert some into regular toothbrushes, his ambition was to create a true sensation. Hopkins understood a crucial hurdle: convincing someone they needed Pepsodent… Read More The Pepsodent Effect: Understanding the Power of Gradual Engagement in Marketing