"Crowd Psychology" is a classic work by Gustave Le Bon, a French psychologist and sociologist, in which the author explores the phenomena and features of crowd psychology. The book examines the psychological aspects of interaction and behavior of people in groups, analyzes the psychological patterns that arise in the collective. The author points out the influence of emotions, stereotypes and psychological mechanisms on the formation of views and decisions in the masses. This book helps to better understand the behavior of people in high-pressure situations and to identify patterns that govern collective action.