For the first time, Gosei Yamaguchi details the basics of one of the most popular styles of Japanese Karate. Containing more than 400 diagrams and photographs, this landmark volume introduces the concepts of the hard soft system and shows how to put them into practice. Gosei Yamaguchi is the chief instructor of Goju Kai Karate Do USA and the foremost authority on Goju Ryu in the USA. He is the son of the famed "Cat" Gogen Yamaguchi, founder of the International Goju-Kai.