Think and Grow Rich

Think and Grow Rich was written by Napoleon Hill in 1937 and promoted as a personal development and self-improvement book. He claimed to be inspired by a suggestion from business magnate and later-philanthropist Andrew Carnegie.While the book's title and much of the writing concerns increasing income, the author insists that his philosophy can help people succeed in any line of work, to do and be anything they can imagine. First published during the Great Depression, the book sold more than 20 million copies by Hill's death in 1970. By 2015, more than 100 million copies had been sold worldwide.