This book contains the technical bases of two major arts Bujinkan: the first level of Jo Jutsu and Bo Jutsu in the first two. Because of explanation and may pictures sometimes superimposed should be complemented by the book of the Bujinkan Dojo BUKI WAZA Montreal or even better by the videos on the Bo Jutsu Jo Jutsu and Hatsumi Sensei will make this more understandable book .