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Title: A great book with lots of room for improvements.
Review: I have experiences in many martial arts and had done lots of streetfighting, and I can tell a working technique just by looking at pictures. In this sense, I must say that 75% of Prof. Kirby's moves works well. His armlocks, for example, are more effective than those of Aikido. However, being an experienced groundfighter, I must say that his ground escapes are weak. But it's not his fault. I'm sure he included it just as an afterthought, and GF were not popular by the time he wrote this book. It's very good that he included it on this book, considering that most other Jujitsu teachers omits ground moves on their books.
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