If you can't afford to buy any of these books, send me an email with a request for one title along with your name and address, and I will submit your request (anonymously) to my list of 1,000 friends. No guarantees, but one of them will likely respond. At that point, I will email your name and address to that person, who will mail you a copy free of charge, no strings--just blessings--attached.
For a definitive list of Self-Improvement titles, including detailed summaries, please see my friend Tom Butler-Bowdon's website (and books): www.butler-bowdon.com
You might also like: Is Eckhart Tolle a Seinfeld Fan?
You might also like: Balthasar Gracian and the Pain-body