What are great books to read for teenagers/ young adults?

I just finished Reading Spirit Bound( part of the Vampire Academy Series) and it was amazing, now i don't have anything else to read until the next book comes out in 7 months! i heard Night World is suppose to be good but i don't know what its about. So if anyone has any good books they know about that they can give me a reviews/ synopsis of that would be very helpful!