In the city of Koka in Shiga Prefecture — also known as a “ninja village” — a written copy of the original, famous book on the art of ninja, “Karinseiyo,” has been discovered at a local shrine.

Historical origins of ninja in Feudal Japan’s warfare and espionage.Myths vs. reality: ninja powers, Hollywood portrayals, ...

TOKYO (AP) — Japan is turning to those hooded samurai-era acrobatic spies known as ninja to woo tourism. The Japan Ninja Council, a government-backed organization of scholars, tourism groups and ...

Japan has produced its first ninja studies graduate after Genichi Mitsuhashi spent two years honing his martial arts skills and absorbing the finer traditions of the feudal martial arts agents. The ...