Kokugyo - Bible for every Koi lover
The book contains so many beautiful pictures and provides a detailed explanation of how to appreciate every variety of Koi.

It also includes a CD-ROM that trains you to compare over 150 Nishikigoi by asking you to judge 2 Koi at a time, and then sharpens your skills by indicating and explaining the specific points you should use in the comparison.

There is also a Question and Answer booklet answers over 200 questions on Koi and Koi keeping. You will find answers you have been asking about.

And as a included bonus there is a very comprehensive Glossary. It provides a correct pronunciation guide to a detailed index of Koi terms.

Kokugyo Vol. 2 - Nishikigoi Development
After spending nearly 3 years, Kodama has finally completed “Kokugyo 2 –Nishikigoi Development. He has collected pictures that follow the changing process of 174 Koi and explains how they developed. Everyone has wanted to but no one has been able to compile information like this before. This is a dream book for every serious Koi lover like yourself.