Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Enhanced with over 150 photographs and drawings

Compiled by Koi expert Anmaire Barrie, The Professional's Book Of Koi is a superbly presented full-color guide to the art of raising colorful Japanese carp. Over 150 photographs and drawings illustrate an informative and seminal volume that is as practical as it is fascinating. Individual chapters address proper aeration and filtration of Koi ponds, steps to ensure proper nutrition and health, koi breeding and exhibitions, and much more. The Professional's Book Of Koi is a truly first-class reference for anyone with an interest in learning about and raising koi.