How to Win Friends and Influence People
Great Leads
The Ultimate Sales Letter
The Seven Lost Secrets of Success
The Wizard of Ads
Breakthrough Advertising (out of print but you can buy it used on eBay)
Start with Why
Influence: The Psychology of Persuasion
The Irresistible Offer
Go for No!
Secrets of Question-Based Selling
One Million in the Bank
Secrets of the Millionaire Mind
Think and Grow Rich - by Napoleon Hill
The Compound Effect - by Darren Hardy
The Big Leap - by Gay Hendricks PhD
The 12 Week Year - by Brian P. Moran and Michael Lennington
The Slight Edge by Jeff Olson and John David Mann
Rich Dad, Poor Dad - by Robert T. Kiyosaki