This document provides an overview of key concepts in social psychology related to conformity and obedience. It discusses classic studies on conformity by Sherif and Asch, and on obedience by Milgram. Factors that influence conformity and obedience are explored, such as group size and unanimity. The document also examines theories to explain these behaviors, such as informational and normative influence, and the agentic shift proposed by Milgram to explain why people obey authority figures. Criticisms of classic studies and strategies for resisting social pressure are also summarized.