My favorite books are the other side of midnight, the best laid plan, nothing last forever, tell me your dreams by sidney sheldon and 5 point someone, 2 state by chetan bhagat.
Holy Quran is mine favorite its a best solution for me whenever i got tense or depressed or even when i was in joy, so this book control me in my limits.
I'm reading Shantaram at the moment - its interesting to learn more about how people live overseas and especially in countries where I know people from them but I haven't actually been. http://en.wikipedia.org/wiki/Shantaram_(novel)