John J. Donohue 
Sensei [EPUB ebook] 

A nationally know expert on the culture and practice of the martial arts, John Donohue has been banging around dojo for more than 30 years.
Fascinated with the themes of human action and potential he uncovered in his research, John began thinking about the fictional possibilities inherent in the world of the martial arts.
John has always been fascinated with other cultures and was attracted to the Asian martial disciplines because of their blend of philosophy and action. He began studying Shotokan Karatedo in college. He joined practical training with more formal education, completing a Ph.D. in Anthropology from the State University of New York at Stony Brook.
Fusing the way of the pen and the way of the sword, while writing John has trained in the martial disciplines of aikido, iaido, judo, karatedo, kendo, and taiji. He has dan (black belt) ranks in both karatedo and kendo.