Customer Rating: 
Summary: Very poor....
Comment: As previous reviewers have noted, this man has no knowledge of ninjutsu as taught by Hatsumi sensei, or Mr Morgan, who I have had the pleasure of training with very briefly, and AK is not recognised by ANY reliable source for the dissemination of Ninjutsu.It`s fair to say, after reading this book, he is a bad writer too.I understand his name is Chris Hunter, and he is from New York.Only a complete fool would attempt any of the nonsense in this book. If you genuinley seek training, google is your friend.
Customer Rating:
Summary: Stupidity
Comment: Just try Mr Kim's techniques in real life situations and you will end up in the grave.Stay away from the books of this "Grandliar". He is not a "Grandmaster" as he claims to be.
Customer Rating:
Summary: Your life depends on the Truth
Comment: Ashida Kim came to South Africa in about 1988/1989 and I briefly met him. At that stage I was learning ninjutsu under Brin Morgan. Brin Morgan is a personal student of Dr. Masaaki Hatsumi and is one of the most highly qualified ninjutsu practitioners in the Western World.To cut a long story short, Ashida Kim's real name is Radfid Davies (not sure of the spelling) and he is not an authority on ninjutsu. The ninjutsu fraternity is very aware of his shortcomings but leave him to his own devices in the knowledge that the true seekers on ninjutsu will unravel the truth.
Stephen Hayes is one of the few legitimate authors of ninjutsu. He speaks Japanese fluently, is married to a Japanese woman and is a personal student and friend of Dr. Masaaki Hatsumi. Books written by Stephen Hayes are based on information gained from Dr. Masaaki Hatsumi who is the present grandmaster of ninjutsu and therefore the undisputed authority on ninjutsu. Hopefully this snippet of truth shall set you free.
May the force be with you in your quest to seek out the truth.
Customer Rating:
Summary: A good book, but not authentic ninjutsu
Comment: Let me make one thing clear: This book is not authentic ninjutsu. In fact, it is closer to being shaolin qiqong than ninjutsu (the Da Mo series, for example). It even has sections with yoga in it (sun salute)!
This book is divided into many different sections, each of which are not necessarily originated from the same art (and definitely not from ninjutsu). This doesn't stop the book from being good, however, but it does impede readability for the reader who knows something on the subject already.
I would recommend this book for intermediate qiqong practicioners that are looking for ways to improve their qiqong, but I would NOT recommend this book to anyone trying to learn more about ninjutsu.
Also, the last section of this book (on iron body) is really dangerous, even for someone who knows what they are doing, and although the author stresses precaution, anyone without years of preliminary training will get hurt if they try and practice the exercises described.
Customer Rating:
Summary: Don't underestimate
Comment: I don't know if he is authentic ninja or not but the book brings together rare knowledge from the chinese martial arts. Lets not forget the original ninja were the Lin Kuen from China, during the early unification of the 3 states period many peoples fled to Japan. The Japanese generally killed any foreigner so it is not to far a stretch that many survived in a strange land as ninja. See my review of Ninja Mind control.
