This was a very interesting book, and I particularly liked that it dove into the difference between historical evidence and commonly accepted 'truth' and the role of media and myth. There were a few places, where I felt that more historical sources could have been useful for making points, and I was not as gripped by the writing style as I was by the subject matter. However, a fascinating read especially for anyone with an interest in ninjas whether from the historical pov or because of their role in the eyes of modern society.