First published in 1945, "The Master Key to Riches" is a guide to personal and financial success by famed American self-help author Napoleon Hill, famous for his widely read classics "The Law of Success" and "Think and Grow Rich", which is one of the best-selling self-help books of all time. "The Master Key to Riches" is based on the Andrew Carnegie formula for personal financial success and this method is shared by many successful businessmen all over the world. Hill outlines the steps that anyone can take on a daily basis to lead them on a path to achieving their goals in both their professional and personal lives. In this engaging and encouraging guide, Hill discusses how an individual mindset must be changed and the will focused in order to achieve the mental health and happiness that is the foundation for healthy relationships, which in turn lead to success in business and finances. "The Master Key to Riches" can help anyone turn their failures and set-backs into positive advantages so that even the most humble and modest of people can reach impressive heights of power and fortune.