This document discusses personality from several perspectives. It begins by defining personality and exploring its origins from the Latin word "persona" referring to masks worn by actors. It then examines major theories of personality including trait theory, psychodynamic theory, behavioral theory, social learning theory, and humanistic theory. The document also explores key aspects of personality like the Big Five personality traits and differences in personality across gender, culture and race. It provides an overview of approaches to assessing personality like self-report tests, projective techniques, interviews and thought sampling. Finally, it discusses some methods used in personality research like case studies, experiments, and correlational studies.