An up-to-date summary of all the current knowledge available which relates to the visual system of a fish. The book looks at the anatomy, physiology and development of fish vision and aims to provide not only an understanding of these topics and their relationship to neural function and image formation, but also a better understanding of the relationship of fish with their underwater environment and their consequent behaviour within that environment. A wide range of examples is included and the author highlights the fact that fish provide ideal models of the typical vertebrate visual system and also an example of evolutionary adaptive radiation. The book will be of interest to those working in the areas of visual science, neurobiology, comparative and sensory physiology and fish biology.