Order of Isshin-Ryu: One Family - One Dojo: History and Teachings of Master Toby Cooling and a Promise Made to the Founder - Paperbackby Dan Popp (Author) In 1956 Tatsuo Shimabuku formalized his martial arts training, knowledge and experiences into one of the world's foremost karate styles: Isshin Ryu. Many outstanding karate ka were produced over the years and the style has grown exponentially throughout the world. One such ambassador of Isshin Ryu who has built a foundation of tradition and outstanding students is Toby Cooling. Grandmaster Cooling has kept a lifelong promise to