Antony Cummins holds an undergraduate degree in Ancient History & Archaeology and a master's degree in Neolithic Archaeology. In addition to working as a ninjutsu consultant for documentaries and other researchers, he has co-hosted television programs dedicated to the ninja. His previous works include In Search of the Ninja, True Path of the Ninja, The Secret Traditions of the Sinobi, and the Illustrated Guide to Viking Martial Arts. He splits his time between Manchester, England and Japan.
Meiko Koizumi is a translator and expert in old Japanese texts and martial arts.
