This book is intended for people with type 2 diabetes seeking to manage their disease. Fundamentally important in diabetes mellitus (to a greater extent than in any other diseases) is the active and competent participation of the patient in the treatment process. To do this, each patient with diabetes must, first of all, have a considerable knowledge of his disease, in which, we hope, this book will help you. The book contains fundamental information about this disease and can serve as a kind of manual, which is sought in search of an answer in a particular difficult situation, which is inevitable in this disease. Of course, this book can not replace the special course of study, which is held in the so-called “schools of diabetes”, but serves only as an addition to it. This book will also be useful to all people with whom you are in close contact and in need of support. Organization developer:GU Endocrinological Research Center of RAMS, Diabetic Center of the Ministry of Health and the SR of the Russian Federation