Sasamori Junzo's classic work describing the history, techniques, and philosophy of Ono-ha Itto-ryu, "Itto-ryu Gokui" (English title: "Secrets of Itto-ryu") is being translated into English as a series. The first book, which covers the history of Ono-ha Itto-ryu, is available from Amazon and other booksellers. You can find it using the link below.

Mark Hague