日本の刃物 研ぎの技法: この1冊を読めば和の刃物の知識と研ぎ方がわかる Help you learn Japanese tool（knife） sharpening skill

This book clearly explains how to sharpen various Japanese knives with photos—it's a purchase you won't regret.

A wonderful book detailing sharpening techniques for common Japanese edged tools, like kitchen knives, carving tools, hatchets, & razors.

Even though the book is fully in Japanese, the many photographs allow you to understand the sharpening considerations & techniques. An informative book!