Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is a wonderful book and a really wonderful teacher.

This is a must read for any student of Martial Arts. It is so rare for new Martial arts traditions to be introduced, rarer still for them to be so rich in scope and technique and even more rare for the genius of the art to be alive, well and accessible to all who wish to meet and study with him.I know the author as my teacher and friend. Read the book, then make the trip to Boston and meet the man. If you give him just a little of yourself, you will be rewarded with such an incredible shot of knowledge and ability in return, you will be left reeling with the enormity of the gift for the rest of your life.