This document provides an overview of Sigmund Freud and Jacques Lacan's theories of psychoanalysis. It discusses Freud's major works on the conscious and unconscious mind, interpretation of dreams, and the id, ego and superego. For Lacan, the unconscious is shaped by language and the discourse of others, rather than dark impulses. Lacan also described three stages of development: the imaginary stage, the mirror stage, and the symbolic stage defined by language acquisition. The document notes some differences between Freud and Lacan's views, such as whether sex or affection comes first, and whether the unconscious is full of impulses or the discourse of others. Finally, it discusses how their theories can be applied to understanding the