The collective monograph prepared by the staff of the Department of social psychology of St. Petersburg state University presents theoretical and practical provisions of the current state of social psychology of communication as a branch of scientific knowledge. Various aspects of social psychology of communication on the materials of research conducted in recent years by domestic and foreign researchers are considered here. A significant place is occupied by the works of psychologists of St. Petersburg state University. Since communication in various forms accompanies all human activity, the content of this monograph covers a wide range of communication processes in the areas of family and professional organizations, in various social groups — small and large. Special attention is paid to the problems of inter-ethnic relations and intercultural communication. This book may be of interest to specialists-psychologists and representatives of related scientific disciplines — sociologists, cultural scientists and ethnographers. Students-psychologists of senior courses and graduate students, referring to this work, will undoubtedly be able to deepen their understanding of the phenomenon of communication in human life.