Antony Cummins is the founder of the Historical Ninjutsu Research Team, which has previously published The Book of Ninja and The Book of Samurai (Watkins). Antony also works as a consultant and co-presenter on high-end documentaries on Japan that are distributed by National Geographic, and is the Official Tourism Ambassador for Wakayama. He has been recognised by peers as a leading expert in the discovery of military arts of medieval Japan. www.natori.co.uk