The first volume of this introduction deals with the theoretical approaches of social psychology and theory. It examines, among other things, critical theory, poststructuralist and structural-functional theories, as well as the approaches of symbolic interactionism, critical psychology, and the concepts of social learning and social cognition. This makes social psychology visible not only from the perspective of psychology but also from the perspective of sociology. A clear structure of the chapters introduces readers to the questions of the respective topics and provides references for further literature. An ideal introduction for students of sociology and psychology who seek a quick and compact entry into the subject.