Divergent is the first book in a trilogy by Veronica Roth.
I would have to give this book 5 stars because it was awesome. Divergent takes place in dystopian Chicago. It is almost like the Hunger Games, but I have to say much better, because they don't have to fight. The kids have to chose a faction to live in, but to stay forever, they have to pass tests. During some of the scenes, I just wanted to cry.
This is a great book and if you like/love future type books, I totally recommend Divergent.
Of course, after reading Divergent, you should pick up Insurgent. I give this one 5 stars, as well.
They are going to start making a Divergent movie, set to come out in March of 2014. So better start reading. Enjoy!