Forgive me if this is repeated information....there are just too many posts to go through to see if this has been posted before....if so...sorry.

As a certified instructor, I will reccomend the following for your study....(books)

In The Graves Extreme (The role of the firearm in personal protection) by Massad Ayoob

Stressfire (all volumes) by Massad Ayoob

In Self Defense (the legal, ethical and tactical use of deadly force) by Michael T Izumi

All are (IMHO) excellent reads....and I recommend them wholeheartedly. I often suggest them to any student I am to train as reading BEFORE coming to the class. A lot of time they come in saying how much more informed they are. It usually generates a lot of questions....but those questions are always excellent and usually more advanced than the questions the student had planned on asking before they read the books.

No I don't think they are the 'end all, be all' of the information you need....but they are an excellent start.