This document provides an overview of several key concepts in literary theory, including structuralism, post-structuralism, psychoanalytic theory, Lacanian theory, and the theory of deconstruction. It discusses major proponents of these theories such as Derrida, Foucault, Kristeva, and Lacan. Key aspects of deconstruction outlined include the literary and philosophical aspects, logocentrism, metaphysics of presence, différance, and arche-writing. Foucault's ideas around power/knowledge and different types of power are also summarized.