I can't believe how incredibly good this book is! I am especially thrilled at all the joint-locking and choking manoevers, their entries, defenses, reversals and so on. The ground-grappling part of this book is huge, and contains so many things that I have never even thought of in my 16 years doing Judo! And, for those of you into using the so-called 'guard' position in grappling: there is a whole host of moves concerned with it: passings, chokes, armlocks etc. In addition, this book shows you how to use leg and ankle locks both to submit your opponent and to escape from chokes etc. The 'real fighting' comments Mifune makes are really interesting and fun. For example, I didn't know that the 'thrusting' choke was intended for use primarily against someone backed up against a wall; hadaka jime (arms-only strangle) is best adapted for use against a punch: sidestep and squish the neck. Mifune (the author) is the best Judo fighter in history, and we can see this in all the wisdom he has collected from his lifetime of beating people. Your fighting skill will definitely improve with each of the techniques he teaches, and your victories in Judo (or in any grappling system that allows joint locks and chokes) will increase steadily in number. THIS book is the best Judo book; nothing else really compares to it at all. It will open up whole new avenues to victory that you never would have thought of on your own. If you take your training seriously, you have to have it. Buy it!