Aikido Shugyo is perhaps the single most important work available in English by Gozo Shioda, the founder of Yoshinkan Aikido. Together with Aikido Jinsei, these works form the essential basis for understanding Gozo Shioda and the Yoshinkan style for English speakers the world over. The original Japanese text was translated into English by Jacques Payet Sensei (of Aikido Mugenjuku in Kyoto, Japan) and Chris Johnston Sensei. It is a highly recommended text for all martial artists.
From the Shindokan Books website:
Aikido Shugyo, by Gozo Shioda, was originally released in Japanese in 1991. Throughout this important and insightful work, Shioda Sensei relates many stories about the time he spent training directly with the founder of Aikido, Morihei Ueshiba Sensei, about his war-time experiences and about his years as the Headmaster of the Yoshinkan. He also uses countless anecdotes to convey important insights into the functioning and application of Aikido techniques. Aikido Shugyo will inspire anyone interested in traditional martial arts with its lessons, its history, and its straight-forward approach to the application of Aikido techniques.
Visit the Shindokan Books website for more information.