A scheduled three-hour interview between a young Napoleon Hill and Andrew Carnegie strung out to three days. During that time, Carnegie revealed his secrets of success and then offered young Hill the task of organizing and systematizing the world's first philosophy of individual achievement based on the principles. From that moment on, Napoleon Hill dedicated his life to spreading the philosophy of achievement and the principles of success worldwide for the benefit of all people.

The Principles of Self-Mastery represents an in-depth discussion of Napoleon Hill's first four principles of personal achievement-the foundation upon which personal success is built.

The Principles of Self-Mastery is the first of four volumes in this updated and revised edition of The Laws of Success, which was originally published as an eight-volume set.