Conservation of Paper Materials: How to perform Japanese four-hole book binding (yotsume toji)

In this course, you can learn a Japanese binding method called yotsume toji.
* This course focuses on quick repair of general library materials for people who do not have expertise in conservation treatments.
* Please do not use methods introduced in the course on rare materials and heavily deteriorated ones.
* National Diet Library, Japan accepts no responsibility for any problem or damage to materials brought about by using methods introduced in this course.

• Conservation of Paper Materials: How to perform Japanese four-hole book binding (yotsume toji) (7 minutes) (YouTube)

• Manuals (PDF: 722KB)

July 2025