Samurai: The Japanese Warrior's Manual

Turnbull, Stephen: - Stephen Turnbull is a writer and historian, specializing in military history, particularly of Japan and East Asia. He was visiting professor of Japanese studies at Akita International University in Japan and is the author of over seventy books. Turnbull gave the inaugural lecture for the establishment of the International Ninja Research Center at Mie University, Japan, and acted as historical advisor for the 2013 film 47 Ronin.