Wado Ryu Karate/Jujutsu This book is clearly translated by someone who is not a native English speaker. The descriptions of the moves are not very detailed and like other books on the subject, the photos omit important transitional movements in the Kata. Having said that, All-in-all, I strongly recommend this book as a good reference to for all Wado students.
This book could be A LOT better, but the simple fact is, it is one of the best references in existence at this time. Ohgami's KARATE KATAS OF WADO RYU is similar in content to this book, and while it contains several improvements, it still has many of the same shortcomings.
The best book on the topic is Mark Edward Cody's new book WADO RYU KARATE JUJUTSU. There is no comparison between Cody's text and Ohgami's book (KARATE KATAS OF WADO RYU), Otsuka's book or anything currently in print on the system.
I have read Cody's other two books as well as gleaning over the new WADO RYU KARATE/JUJUTSU book and I think Cody's work will eventually become the primary Wado reference book. Cody is an excellent writer, and unlike Otsuka and Ogami, English is his first language.
Very few writers have improved of Otsuka's master text of Wado and unfortunately, few have tried. Time is running out for most of the men who trained directly under Otsuka. Although Cody never trained under high-level Japanese instructors, I think his writing ability and attention to detail will prove to make his book WADO RYU/JUJUTSU the first text since Otsuka's to be widely used as an instructional text for the system.
Ohgami's book, like that of Otsuka, does not contain all 17 Kata normally taught in the system. Cody's book covers all 17 forms with well illustrated, HIGHLY detailed descriptions. Otsuka and Ohgami are often unclear on the direction of movement and the degree to which the body is turned. Cody is to the best of my knowledge the first martial arts writer to ever use compass points to chart the direction of movement. His system of explanation leaves no room for confusion.
Several other authors have attempted to improve on this original Wado book, penned by the founder of the system, but to date, Otsuka's WADO RYU is still the definitive text on the system.