Indian subcontinent rich in natural and cultural heritage, with a diverse range of natural conditions from offshore deep seas to high mountain tops. Fisheries, is an important sector in India it providing employment to millions of people and contribute to food security of the country. With a vast coastline, an Exclusive Economic Zone, and with extensive freshwater resources, fisheries play a vital role in the economy of the country. An accurate identification is a pre-requisite for further scientific studies and this book aims to serve that purpose and to be an introductory guide to the commercial fishes and their identification. Each Species Account is comprised of the following parts: the scientific name, common names, systematics, key characters, morphology, colour, size, distribution, habitat, economic importance, feeding habits, conservation, and an illustration. This book is intended to be a reference text for students and lovers of fishes to assist them in learning the morphology, diagnostic characters, and basic ecology of fishes. Our goal is to give an overview of the fishes, with more detailed accounts and illustrations of the commercial fishes, which are important to humans. The general anatomy of fishes is briefly covered, focusing on external features. This is a comprehensive and better illustrated book covering the major aspects of commercial fishes with particular focus on the Indian context. This is an essential reference for all those working in the arena of fisheries. I am sure, this book will certainly be of great interest and use as a reference book for college and university students and an ideal introduction for non-scientists. In a nutshell, whoever interested in Fisheries would find this book useful and I hope it would become a frequent consulted, informative, practical guide to the subjects