Owari and Yagyu Koshirae by Masayuki Sakairi. This book has two appendix. First one is "Owari Toko Meikan" with blade oshigata with short descriptions. The second one is Tsukashin Densho: The Secret True Transmission of Tsukamaki Techniques. And this second appendix is the reason why so many people want to have this book. There are pictures of tsukamaki techniques that could not be found in other tsukamaki books or movies.