This book is one of the most complete and thoughtfully written. The large format 21.5 x 28.0 cm book contains more than 550 color photographs by several authors. The most interesting part of this book is perhaps the Central American cichlids evolution theory by Ad Konings based on feeding specializations found among them. Based on available literature Ad designed a possible scenery of evolution of the species that gives something to think about. The book is accompanied with ranges for many species as well as an atlas section included by T.F.H.