Title Ninjutsu its history and Ninja
Publication year 1963
This is a vintage Ninjutsu book by Heishichiro Okuse,who is one of the most famous Ninjutsu researcheres here in Japan.
In the postscript to this book,Heishichiro Okuse says,"Long ago,I publised a book,entitled Ninjutsu Hiden.This book mainly deals with Iga-Ryu Ninjutsu and in this book,I explained 'the origin and development of Ninjutsu' and 'The art of Ninjutsu' in detail. I have been thinking that I would like to write the best history of Ninjutsu from all over Japan from a broad point of view."
