Kung Fu High School by Ryan Gattis. This was his second and probably last book he made in 2005 (at least, it was published at that time).

I highly recommend this to everyone of age 12 and up (<-- I guess it's pretty unfair because I knew more than a 17 year old at age 11 O.o). Although, here are the genres you guys might like:

1. Drug Traffic
2. Murder
3. Gangs
4. Martial Arts
5. High Schools (only one fictional school involved)
6. School (slightly)

The narrator of this story is from a female's point of view - 15 year old Jen B. You could say that she acts like a guy (pretty much because the author is a male) and doesn't take crap from anyone. So, Jen could be pretty bias in the situation, but with extra inferring, you could see through what really is happening.

I think that this book is mainly for males, but I'm a female, and I love it =D
Check it out in your local library, school library or god damn buy it <3 Enjoy!

(P.S: This book barely has any recognition to people in Canada, so I'm trying to enhance it towards people all over the world. This amazing novel deserves it.
The second reason why I'm doing this is because I want to write a sequel on it, and everyone would get what I'm saying if they read the book.)

Dedicated to: Bruce Lee and Robert Cormier.