The millions of men and women who are grateful to Napoleon Hill for his great bestseller Think and Grow Rich will gain not only new inspiration, but a positive, driving determination for self-improvement and success from these power-packed pages. Based on the Andrew Carnegie formula for moneymaking, The Master-Key to Riches describes in step-by-step detail today's greatest practical philosophy of success. This amazing philosophy, organized 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. There is but one sure way to riches, and that may be attained only by those who have The Master-Key to Riches. This master-key is a marvelous device that can be used to unlock the door to an exciting new world. It is offered to you here in the pages of this extraordinary book. Read it. It will change your whole life...for the better. Book jacket.