An ideal text for undergraduate- and graduate-level courses, this accessible yet authoritative volume examines how people come to know themselves and understand the behavior of others. Core social-psychological questions are addressed as students gain an understanding of the mental processes involved in perceiving, attending to, remembering, thinking about, and responding to the people in our social world. Particular attention is given to how we know what we know: the often hidden ways in which our perceptions are shaped by contextual factors and personal and cultural biases. While the text's coverage is sophisticated and comprehensive, synthesizing decades of research in this dynamic field, every chapter brings theories and findings down to earth with lively, easy-to-grasp examples.