By Napoleon Hill
Think and Grow Rich was published during the Great Depression and has remained a bestseller ever since then. Backed up with 25 years of research, this motivational book teaches the Andrew Carnegie formula for attaining success and wealth.
This ebook will cost you at least 99¢ if you get it from the Kindle Store, but it’s actually in the public domain. You can download your free (and legal) copy of Think and Grow Rich from archive.org.