The document discusses various theories of narrative structure. It notes that a Greek philosopher discovered over 2000 years ago that narratives must have a beginning, middle, and end. Additionally, it describes how this theory developed into identifying five main stages of narrative: exposition, complication, development, resolution, and climax. Another section explains Campbell's monomyth theory that narratives follow a hero's journey through universal stages. Finally, Todorov's theory is summarized as suggesting narratives pass through five stages - an initial equilibrium, a disruption, recognition of the disruption, an attempt to repair it, and a new equilibrium.