Book excerpt: The entitled book "Freshwater Fish Parasites" spread over 10 chapters, with complete pictorial guide of different fresh water fish parasites all over the country. The detail etiology, clinical signs, prophylaxis and treatment of parasitic diseases have been discussed in a simplified manner for easy understanding of students, researchers, teachers, scientists and farmers in the field .The book covers most interesting chapters and will guide to identify and manage parasitic diseases including some aspects of latest developments in fish parasitological research. A comprehensive approach has been made to cover all the progressive areas of parasitic disease management starting from identification of the parasites, basic status of diseases towards various approaches to diagnose, prevent and control disease conditions. The parasitic problems of different fishes, like indigenous fishes, exotic fishes of commercial importance, sport fishes and ornamental fishes have been addressed to give a complete parasitic disease profile on total fishery. The behavior of the hosts, interrelationship of soil and water with parasitized hosts, and mechanism of parasitic attachment are important aspects of the concerned book.