I just bought this book today and I have to say it's really good. The most suprising thing is the amount of good info on ground techniques. It has a few arm locks I haven't seen before and some more advanced techniques that are similar to things you'd see in a bjj book. One move that really suprised me was the reversal of Ushiro-goshi (similar to a back suplex). As I looked at it I noticed it was the move that Saku broke Renzo's arm with. Anyways, I thought it was something people might want to pickup or thumb through if you're ever at Barnes and Nobles.