Think and Grow Rich - Napoleon Hill
Napoleon Hill interviewed "40 millionaires" to discover the common thought processes and behaviors that had led to their success. His study of these "best practices" was revolutionary in a world where it was largely assumed that great wealth resulted from a combination of greed and luck.
Awaken the Giant Within - Anthony Robbins
Anthony Robbins is unlike most motivational writers in two ways. First, he treats training the mind and body as a technological challenge rather than moral imperative. Second, he somehow manages to be both an inspirational role model and the most annoying guy on the planet.
The Greatest Salesman in the world - Og Mandino
Og Mandino's faux-biblical parable encourages you to live your life to the fullest by believing in yourself and your ability to help others. Required reading for anybody who sells. Which is just about everybody.
