Instruct: Classify Amazon reviews into positive or negative sentiment
Query: TALK ABOUT CRAP!!!!!!!

I have this book. I bought it three months ago and read it cover to cover. I also have Iron Body NINJA by Mr. Hunter (ASHIDA KIM). He's just making donkysmells with a pen and paper. I practice the art of meditation, and the Kuji-Kiri Mr. Hunter, I implor you, stop writing ninja fairy tails. The Kata he shows in the book is crap in the exterem. He doesn't properly describ perfoming the Kuji-in or any typ of meditation. He's obviously a faild novilist who bought a black karate gi and put on a ski mask. if you want to learn yo meditate, there are lots of books to help you. meditation helps control your own mind. Mr.Hunter (Kim) just wants your money, don't buy his book. In fact dont buy any of his books. there all crap. Mr. Hunter (Kim) had best "RETIRE" from his art befor a REAL ninja catches him on the street. It would be in his best inrest. Thank you for your time.