Down these mean streets, by Piri Thomas
It's interesting more than informative. Makes for a good story. It has a lot of street shit to it but I couldn't really relate to it myself.
Other political books that were interesting:
Malcolm X's autobiography as told to Alex Haley
Seize the time, By Bobby Seale
Soul on Ice, By Elridge Cleaver
It's mainly african literature but I found it easier to relate to these books above.
The Art of War, By Sun tzu
The Holy bible
Both of the above books have a lot of knowledge. It isn't even about being religious or liking war, it's about interpreting the knowledge and applying it to everyday life.
And also:
War at Home: Covert Action Against U.S. Activists and What We Can Do About It, By Brian Glick
If you dig reading on what goverment was doing to shut a lot of political organizations down this is for you.