Social psychology is a field of study that deals with how people behave in groups and how their behaviour is affected by the presence and actions of others. It scientifically explores how thought and perception influence action and emotional relationships. Shakespeare’s play “Hamlet” reflects the power of thoughts to shape perceptions of one’s country, underscoring the importance of social psychology in understanding human behaviour. The discipline emerged in the early 20th century and has since conducted several famous experiments that have yielded interesting results that contradict our expectations of social situations.This book provides an in-depth examination of the psychological processes underlying human interactions and behaviours in a social setting. It is an indispensable reference for students, researchers, and professionals who want to gain a deeper understanding of how people’s thoughts, feelings, and actions are shaped by their interactions with others.