This is an indispensable guide to legally defending yourself. When I read this, my eyes were metaphorically opened up so much. I thought I was aware of what the "laws" were for carrying a firearm, and had been doing so for many years before being turned on to this book. The way the book was written was very easy to understand, and don't let the size of the book fool you if you haven't read it yet. A good portion of the back of the book is actually an appendix with each State's laws so that you can look up your own state, or areas you may be travelling. Every student and firearms enthusiast that I talk to, I recommend this book because it will provide some serious perspective on what happens legally when you defend yourself... all the way to the supreme court. What was the most eye opening thing you learned in this book?