One cold evening in January 1936, with the world in the midst of the Great Depression, Dale Carnegie addressed a sold-out, standing-room-only crowd at the luxurious Hotel Pennsylvania in New York City. Despite the global economic crisis, Carnegie, in a series of full-page newspaper ads, had promised the attendees that they could increase their incomes, and he was about to deliver on that promise. But how exactly did Carnegie come to discover these priceless, proven secrets of social, professional, and financial success? In this episode of Classic Influence, we’ll travel back to the 1930s and discover how a man born into poverty on a farm in Missouri came to become one of the best-selling authors of all time, “The Father of Self-Help,” and, in time, the head of a thriving personal development empire the likes of which the world had never before seen.