Bnet has lists of Overrated and Underrated business books. I agree on the following:
No. 10. Completely agree. I can’t remember that i can learn anything by reading books from Robert T. Kiyosaki.
No. 1. I think every business people in the world should read The Tipping Point.
Freakonomics . I think i found this book was the highest seller in (almost) all big book sellers in Indonesia. Underrated?
But hey it’s my opinion. Hope it’s useful to you, thanks.