Toyama Kanken was born in Okinawa in 1888 and received martial arts training from the greatest masters of the time from a young age. Among his teachers were Itosu Anko, Higashionna Kanryo, and Aragaki Seisho. During a six-year stay in Taiwan, he further learned various Chinese martial arts. In 1930, he settled in Tokyo and taught martial arts in a very comprehensive way at his dojo, which he named Shudokan. The death of Toyama Sensei in 1966 marked the loss of one of the greatest karate masters of the last century.
 This book offers, for the first time, an in-depth look at Toyama Sensei's life, his teachings, and the subsequent incredible, comprehensive, and largely unknown influence of him and his students on the worldwide development of Karatedo.
 For all those who are already familiar with Toyama Sensei's teachings, this book will offer new insights, and for everyone else, it provides the opportunity to learn about the extensive legacy of this great master.