Napoleon Hill 
Master Key to Riches 

Discover how to open your mind to success and wealth! Written by the author of the self-help classic Think and Grow Rich, this easy-to-read guide to personal achievement is based on the principles behind the success of Andrew Carnegie, Henry Ford, Thomas Edison, and other 20th-century tycoons. Millions of readers around the world have adopted its philosophy to attain career advancement, improve friendships and business relationships, build monetary wealth, and lead richer, fuller lives. These principles can be applied by anyone of any age, regardless of occupation or economic circumstance.