The book "Handbook of Medical Entomology" by Johansen OA (Oscar August) and Riley VA (William Albert) is an important reference for the study of insects that carry diseases and their impact on human health. This book contains important scientific data on various species of medically important insects, their biology, distribution and control methods. The authors consider in detail various aspects of the interaction of insects with pathogens, the processes of disease transmission, as well as means of prevention and control. This book will become an indispensable source of information for students, scientists and specialists in the field of medical entomology.