Satoshi Kamiya's new book is not a typical diagram book. The few full diagrams in it have actually already been published before, albeit in hard-to-find sources.

What the book is about is the process of folding, techniques, crease-pattern interpretation etc. As all this text is in Japanese I cannot make much of it, but everything is accompanied with many drawings and photos which give insights to the meaning of the text.

Part 1 : Basics - discusses tools needed for folding (from rulers to tweezers, clips, display tools, wet-folding essentials etc.), describes different types of papers, and explains the basic symbols.

Part 2: Practice - shows how to cut paper, make accurate creases, handle more complex moves, allow for paper-thickness in folding, and examines display techniques such as shaping, strengthening the model with glue and using wire for display.

Part 3: Advanced Techniques - delves into wet-folding, back-coating and making tissue-foil, understanding crease-patterns and showing some theories. This part concludes in an in-depth analysis of the Ryujin 3.5 crease-pattern, which is included in the beginning of the book.

The book opens with a gallery of designs, with tiny crease-patterns for Kamiya's, Hideo Komatsu's and Hojyo Takashi's works. There are also photos of other designer's works, without crease-patterns.

While the diagrams included make this book worthwhile in itself, I'm keeping my fingers crossed for an English version of the text!