I think the book "Napoleon Hill - Keys To Success The 17 Principles Of Personal Achievement" as I mentioned earlier is not well known but it should be. It would have to be the best general PD book I have ever seen. If you wanted to buy one book, this would be it. I have seen hundreds of books but this one really stands out.
Here are the contents:
1. Develop a Definiteness of Purpose
2. Establish a Mastermind Alliance
3. Assemble an Attractive Personality
4. Use Applied Faith
5. Go the Extra Mile
6. Create Personal Initiative
7. Build a Positive Mental Attitude
8. Control Your Enthusiasm
9. Enforce Self-Discipline
10. Think Accurately
11. Control Your Attention
12. Inspire Teamwork
13. Learn from Adversity and Defeat
14. Cultivate Creative Vision
15. Maintain Sound Health
16. Budget Your Time and Money
17. Use Cosmic Habitforce
Check out some reviews from Amazon:
Amazon.com: Napoleon Hill's Keys to Success: The 17 Principles of Personal Achievement: Napoleon Hill: Books