Here's a list of books that are good to read:
The 7 Habits of Highly Effective Teens by Sean Covey
Wild at Heart by John Eldredge
The Chronicles of Narnia by C.S. Lewis (Okay, this is a series, but if you're going to watch the movies, you should at least be able to tell your friends whether or not they follow the story.)
Captivating by John and Stasi Eldredge
More to come...