This document discusses various concepts and theorists related to narrative structure in media. It outlines Aristotle's beginning, middle, end structure. Todorov's equilibrium-disequilibrium-re-equilibrium structure. Propp identified 31 narrative functions and 7 character archetypes including villain, donor, helper, princess, dispatcher, hero, and false hero. It also discusses plot vs story, cause and effect, Levi-Strauss's binary oppositions, and Barthes' decoding codes including enigma, action, semic, symbolic, and cultural codes.