Sh?ninki (1681) is a historical testimony written by authentic Japanese ninja bearing witness to the strategy and philosophy of these famous warriors. After the first Sh?ninki translation into German in 2004, this re-edited full translation additionally features: An introduction about the general situation of Ninjutsu treatises; an extended analysis of Sh?ninki's background, influences and author; a direct comparison to other Ninjutsu treatises like Bansensh?kai and Ninpiden; a Japanese glossary; a list of historical Ninjutsu scrolls; references of essential literature on strategy and historical Ninjutsu.