Why are first impressions so powerful? How do we “know” what others are like when we cannot read their minds? How can scientists measure biases that people do not want to admit—or do not know they have? This engaging text delves into social cognition by exploring major questions in the field through an everyday lens. Students are introduced to core concepts and processes pertaining to how people come to know themselves and understand the behavior of others. Classic and contemporary findings and experimental methods are explained. The text connects the research to pressing contemporary problems—the roots of political polarization, why even rational people fall prey to misinformation, and the best ways to reduce prejudice. Boxed definitions of key terms are included throughout.