Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent!

The Best Karate Series are the definitive books for learning the art of Shotokan karate. They have been around for many years and still none have surpassed their excellence. They are very helpful for the beginner and the advanced student alike. I have read them all and have found that each book in the series is excellent. Although you can't learn a martial art from a book alone, these books are an excellent supplement to your training and are very helpful in learning the finer points of the art of Shotokan. Each book in this series sets the standard for books on Shotokan training. There are simply none better, at least none better that I have found, and I read a lot of martial arts books. I highly recommend these books for anyone who is interested in improving their karate or who is interested in Shotokan. They are simply the best! Highly recommended. 5 Stars.Bohdi Sanders, Shotokan Blackbelt and author ofWarrior Wisdom: The Warrior's Path