This document outlines three schools of thought - structuralism, post-structuralism, and structuration. Structuralism sees our lives as determined by impersonal social structures that pre-exist us. Post-structuralism emerged from structuralism and rejects Enlightenment reason, focusing on interconnected power-knowledge and disciplinary power that imprints on bodies. Structuration theory links structure and agency interactively, rejecting a strict dichotomy between the two. Theorists discussed include de Saussure, Foucault, Lacan, Althusser, Derrida, Bourdieu, and Giddens.