"When Shihan Jigoro Kano developed his new method of jujutsu, Kodokan Judo, he established three major technical groups: nage waza, katame waza and atemi waza. It has been more than 130 years since the founding of Judo and both, techniques and goals have evolved in different ways. Nowadays, judo is practiced mainly as a sport competition, giving priority to nage waza and katame waza, while atemi waza and the study of vital points (kyusho) are hardly practiced. After many years of researching, compiling and translating old writings with Jigoro Kano's opinion about atemi and self-defense, we have performed this study of the official classification of atemi and kyusho, where are included unpublished documents of the founding master of Judo. Color book."
When you find a book that promises to show "unpublished" things of Judo one should be cautious. When you open the book and see the recommendations by Bruce R. Bethers, Pedro R. Dabauza and Ricardo Mercado Sierra you know that the book is not from "mainstream judo". The good thing is that they do caution you "color book" and color with bold fat fonthas been used, similar to someone who just has found that after black and white there are colors and some parts can be made bold.
The main line is; Where is the Judo atemi-waza and the book tries to answer "here". It is true that atemi waza was part of many Japanese schools. The first 60 pages is spent on putting together information from official Kodokan sources of the meaning and purpose of Judo. Putting together information means that one is quoting without proper references. So the reader does not know what is fact and what is opinion. The obvious goal is to "prove" to the reader that atemi waza was an important part of Judo. The discussion is nice, but having almost the full page with bold font kind of destroys the reading pleasure. It is true that Atemi waza is part of various Judo kata and part of self-defence in Judo. But being interested in Atemi and having defences against atemi does not mean that attacking with atemi was ever a goal in Judo. The obvious Kano and Funakoshi discussion is there, which has been discussed to death. To me the point is that Kano was interested in new things and all forms of self defence. This does not mean that he actively promoted every and all methods he was interested in as integral part of his Judo.
In the 30 page section about vital points this book referes to Takenouchi ruy jujutsu, Seigo ruy jujutsu, Kyushin Ichi ruy jujutsu, Sekiguchi ruy jujutsu, Shinto ruy jujutsu, Tenjin Shinyo ruy jujutsu without further reference to the documents of those arts. Most interesting are ~10 copies of "old slides from 60s?" maybe from Scientific bulleting of Kodokan Volume 4, chapter 6 and 7, showing the vital points of various schools.
The book finishes with 25 pages of photos showing how to do the atemi in various kata of Kodokan Judo. Not the defence, but just the attack.
So apart of the awful type and colors the book is solid, but does not IMHO bring any new vital info to Judo.