Uglies

This is one of the best books I've read this year. In fact, the whole series is excellent. (Uglies, Pretties, and Specials by Scott Westerfield)

In the series, everyone undergoes cosmetic surgery at 16 to become the perfect beauty. Ergo, everyone below 16 is considered ugly. What the people don't know is that the surgery isn't just cosmetic. The doctors basically have given the whole society lobotomies to make everyone into non-aggressive idiots who only want to have fun.

There's a society of "uglies" who ran away from the city because they didn't want the operation, and the people who run the "pretty" city are trying to hunt them down.

I'm not going to delve further into the plot because I don't want to spoil it for anyone, but I will say this: These books lay bare everything that has been wrong with our world since the first stick thin supermodel walked onto the scene. They're well worth reading.