I've been highly interested recently in the art of Ninjitsu and the history of Japan. I've read a few things on the internet, but this was my first factual book on the subject. And it's a perfect taster, leaving you wanting to know lots more. Don't expect this to delve into highly detailed descriptions of the art, but it's a great stepping stone to your understanding. Great book for beginners, like I said, a superb taster to the arts, especially in the spiritual chapters. It made me realise quite a few things about myself, and how I've changed after certain events in my life. Quite short, but a great book to start off with. Read, understand, enjoy.