This book contains five chapters in which the importance of fishes has been described. In this growing population age we can earn food from water may be fresh water or sea Biochemically speaking fishes (finfishes and shellfishes) are rich in protein and high quality fatty acid omega 3, 6, 9 fatty acid, vitamins and minerals. Fish also supplies the rare amino acids to fish eaters. Such a rich nutrients aquatic organisms can easily be cultivated amino acids we have to raise the production of fishes. This book is good for teachers, researchers, extension workers, students or I can say for common man. If you are a fish eater you will not suffer from malnutrition anaemia bone and skin cancer. Fish are economically viable and easily available to people of all strata. Fish can satisfy the hunger of poor and give them sound health in cheap rates.