Social Psychology is the scientific study of how individuals think, feel, and behave in social contexts. It explores how people are influenced by their social environment and the presence of others, whether real, imagined, or implied. Social psychology bridges psychology and sociology, drawing on both fields to understand human behavior in social situations. Social psychology provides a comprehensive understanding of how social interactions shape human behavior. It emphasizes the power of the social environment and the complex interplay between individual characteristics and situational factors. By exploring these interactions, social psychology helps explain a wide range of human behaviors and contributes to addressing social issues. This book include; The Nature and Scope of Social Psychology; Suggestibility; The Crowd; Mob Mind; Prophylactics Against Mob Mind; Fashion; The Nature of Conventionality; The Laws of Conventionality Imitation; The Radiant Points of Conventionality; Custom Imitation; Condition affecting the Sway of Custom; The Field of Custom Imitation; Relation of Custom Imitation to Conventionality Imitation; Rational Imitation; Interreference and Conflict; Discussion; The Result of Conflict; Union and Accumulation; Compromise; Public Opinion; Disequilibration