Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dillman is a joke in the fighting art community

YouTube & wikipedia George Dillman and you'll see & hear his bizarre explanations why his techniques fail on non cooperating volunteers.This book belongs on the same shelf as Lord of The Ring. Anyone that thinks that an agressor will slowly walk up to you and allow you to do these dubious poky attacks, will wind up injured or may be even dead.If you're unable to train in a realistic fighting art, spend your $$$ on a Krav Maga book or a good pair of sneakers. At least both are proven effective defensive mechanisms.