A fine book that discusses Japanese Chisels, from the commonly seen oiire nomi to specialist mokugyo nomi, with well shot photographs documenting the tools. Also included is information about nomi setup, making your own gennou handle for use with nomi etc.. Suffice to say it is an informative book!
It is fully in Japanese, so after perusing the many photographs, you can take your time practicing your Japanese comprehension skills in your own time.