How to Win Friends and Influence People

Dale Carnegie published this guide to human relations in 1936 and it has never gone out of print. With over 30 million copies sold worldwide it remains one of the best-selling books of all time, its core message — that genuine interest in others is the foundation of all influence — so fundamental that it reads less like self-help and more like anthropology. Warren Buffett took Carnegie's public speaking course at 20 and credits it as one of the most important investments of his life.