Koga Ninja master Sensei Arie van den Akker from Boornbergum:: Become a Kicker!!! Use the kickbook!!! Kicking is very important in the Martial Arts scene, it does not matter what you practise it can be : Karate , Kungfu, Kickboxing, Jiu Jitsu, Mixed Martial Arts, Genbukan, Kuroi Ryu Ninjutsu, Kurokumo Shinobi Goshido or any other martial art system or style. Different Kicks of the Kuroi Ryu Ninjutsu / Kurokumo Shinobi Goshido system are displayed and somed up in this book.  Sensei Arie van den Akker from the Kuroi Ryu Ninjitsu school the Kanji for this school in Japanese is 黒竜忍術: , a Ninjutsu head instructor and leader / co founder of the Kurokumo Bushido Academy the Netherlands, is the author of a book about kicking in the martial arts, it is called: "Kuroi Ryu Ninjitsu Kicks"