Please check out the Kaigozan Budo Shop, around 100 Bujinkan dvd’s, books, tabi, swords and other training equipment for Bujinkan students and teachers.
We also started to sell video downloads, check it out!
Here is my recommendations on Amazon. please use these links when you buy stuff at Amazon. I get a small fee for every purchase from Amazon, not much but enough for a couple of books per year.