This document summarizes several theories of personality, including: 1. Sigmund Freud's psychodynamic theory involving the id, ego, and superego. 2. Alfred Adler's theory of individual psychology focusing on inferiority feelings and compensation. 3. Carl Jung's analytical psychology involving archetypes, complexes, and the collective unconscious. 4. Erik Erikson's stage theory of psychosocial development known as the epigenetic principle. 5. Trait theories that view personality as composed of definite traits that differ between individuals. 6. Type theories that classify personalities based on body structures and temperaments.