Read 3 here:
The Intelligent Investor — great book, love Warren Buffett strategy. Basically, do your math and valuations on your purchases. Or simply, buy low, sell high. It sounds simple, but I will guarantee you won’t follow it.
The Tipping Point — interesting ideas for entrepreneurs, though I was more influenced by his other book, Blink, since I’m a UX designer.
The Catcher in the Rye — I can’t say that I want to read it again but I remembered reading it in high school and some of the images from this book are still vivid in my head to this day.