The book of D. B. Vasiliev, a leading herpetologist at the Moscow Zoo, a veterinarian, a member of the International Association of Veterinarians Practicing with Amphibians and Reptiles (ARAV), talks about diseases of turtles in captivity. Particular attention is paid to the issues of proper keeping and feeding of turtles as the main factor in the prevention of many diseases. A significant part of the book is devoted to methods of general and laboratory diagnostics of internal diseases, therapy and surgery of this exotic group of animals. The therapeutic regimens given in the appendix are the most complete to date and are applicable to treat not only turtles, but also other reptiles. The book is intended for veterinary doctors, zoo engineers and livestock specialists, zoologists of zoos and zoo trade associations, students of veterinary and zoological faculties, as well as for animal owners.