This is the first book written by Rory Miller that I've read. I really enjoyed how he approached the subject of violence as it expressed the truth as my own experience has born out.
He covered a lot of topics, many of which I knew very little about. The big ones for me to learn about were the legalities of violence and the panic response. For example, what I knew to be true is that, "If does this, I'll do that," never works in a real physical conflict. What I didn't know was that in the state of New York (and in most states) it is illegal to continue any type of counter attack once the attacker either quits or is incapable of attack. That means, if you hit him once, and he stumbles, you have to stop...or face possible criminal charges of your own. This wasn't in the book, but after reading about the reality of self defense laws, I decided to read NY's statutes for myself just in case the unthinkable happens.
If you have any interest in law enforcement, martial arts, or fight mentality, I recommend reading this book. It's available from YMAA publications on Amazon or anywhere else that sells MA books.