This book was written in the format of a childrens book. The tips were useless, and it was all coupled with horrible, crudely drawn illustrations. The tips went something like, "When walking along a wall with vertical lines, walk vertically. When walking along a wall with horizontal lines, crouch and walk." This book was very basic, and even the chapters on histories night fighters weren't enjoyable.Oh yeah. This book is word for word (I kid you not) the same as "Street Ninja" by Dirk Skinner, which is also a very useless book. I don't know if Dirk used a psuedonym for this book, so that he could advertise in it or what, but avoid both of these books at all costs, unless you plan to star in a movie with three little kids and Mr. Miagi.