Written by expert aquaculturist Servaas de Kock and international koi judge Ronnie Watt, Koi: A Handbook on Keeping Nishikigoi is a comprehensive reference guide to breeding, raising, and managing these "living jewels." This authoritative guide details koi anatomy, history, and water management, while providing detailed, annotated full-color variety profiles to help hobbyists select and prepare fish for competitive shows. The book is a hardcover edition in good condition, showing mild cover wear along the edges and corners with clean, tightly bound interior pages.