Ask the Readers: What books are worth reading?

One area that I plan to cover more frequently in the future is books. Specifically, books that are relevant to self improvement. I have my own favorites of course, but before I start spouting opinions I want find out what books others have found worth reading.

• What books have influenced your thought the most?
• What books have changed your life?
• What books do you strongly recommend to others?

I’m really interested in the results. This should be great for building a killer reading list.