This book is, as far as is known, the first to present an overview of the entire African catfish group, and many of the photos illustrate the species in question for the very first time. By no means all African catfishes are known to science either, while others may be known but are as yet undescribed. In addition it has only recently become apparent what interesting behaviour is displayed by numerous catfish species; and itwas in fact aquarists who, for example, discovered the remarkable reproductive behaviour of the cuckoo catfish and mouthbrooding in several other Tanganyika catfishes.