Think and Grow Rich - The Favourite Book of Billionaires

by Napoleon Hill

https://www.youtube.com/watch?v=mTHe-ItjlhQ&list=PLFjGmsm0oyb9jBD1OVBao8o4JSjblDV2p

Written based on 500 interviews with the most successful businessmen of the Great Depression era, Think and Grow Rich sold more than 100 million copies worldwide by 2015.