"Think and Grow Rich" by Napoleon Hill

THE authoritative work on the mindset and actions that are required to realize success. Just as applicable today as when Napoleon hill wrote it. Recommended to read, re-read, and re-read some more.

"How to Win Friends and Influence People" by Dale Carnegie

Published in 1936, this is one of the first and easily one of the best self-help books ever written.  The fundamentals of working with people and earning their trust are just as true today as when Carnegie first wrote them.

"As a Man Thinketh" by James Allen

Revolutionary piece on the power of though, and the power of the mind. An absolute must-read for anybody that wants to influences their circumstances.

"The Science of Getting Rich" by Wallace D Wattles

Originally published in 1910, this work is credited by Rhonda Byrne as one of the inspirations for her 2006 film and 2007 book "The Secret."

"Acres of Diamonds" by Russell Conwell

The famous lecture by Russell Conwell that generated the funding to start Temple University. Very aptly demonstrates how opportunities are laid out before us if we only look for them. 

"Rich Dad, Poor Dad" by Robert Kiyosaki

An excellent narrative on the mindset and actions that separate those who become rich from those who remain poor. The most dramatic paradigm shift I experienced was learning why only investments that produce income count as 'assets' and that what most people believe to be assets are really liabilities.

"How Americans Get Rich" by Bill Fitzpatrick

Bill Fitzpatrick's Action Principles serve as a comprehensive guidebook for how to achieve personal and professional success.

"The Art of Money Getting" by P.T. Barnum

Timeless money making principles from one of the world's greatest entrepreneurs.  Just as applicable today as when it was first published in 1880.