Books like Ninja attack! by Hiroko Yoda

The Ninjas today are the stuff of myth and legend in comics, film and electronic games. But once they were real, the medieval equivalent of the SAS: spies, saboteurs, assassins. In their secrecy, undercover skills and determination to survive, they were the opposite of the overt, self-destructive samurai. Could they fly? Make themselves invisible? Of course not. It was just that their skills gave them a magical aura. As a result, martial artists and story-tellers have turned them into fantasy creatures, from James Bond to Mutant Turtles. In Ninja John Man goes in search of the truth. In a journey to the heartland of the ninjas, he takes us from their origins over 1,000 years ago, through their heyday in the civil wars that ended with Japan's unification in 1600. But that was not the end of the ninja ethos. That re-emerged in World War Two as a little-known counterpart to Japanese militarism. Ninja ways live on in the real 'last of the ninjas', Hiroo Onoda, who held out in the Philippine jungle for 30 years. From feudal Japan to 21st Century Hollywood, John Man's epic story reveals the reality behind one of the world's most enduring legends.

Dr. Masaaki Hatsumi, 34th grandmaster of ninjutsu, traces the 900‑year history of the Iga ninja traditions, combining historic scrolls, anecdotes from past grandmasters, and practical self‑defense techniques to show how the art endures worldwide.