Based on the Andrew Carnegie formula for money-making, THE MASTER-KEY TO RICHES is a powerful formula for self-improvement, shows you how to harness the powers of your will and mind so that you can achieve mental happiness, business success, spiritual vitality and financial superiority. The Master-Key to Riches provides the key to why some people become successful and how you can become one of them.This amazing philosophy, culled from the success experiences of many of the world's most powerful and wealthy men, will show you how to succeed in any path of life, whether it be love, wealth, personal satisfaction, faith, or any number of other goals. This amazing philosophy, culled from the success experiences of hundreds of the world's most powerful and wealthy men, will show you how to succeed in any walk of life.