This document discusses several theories of narrative and genre. It outlines Vladimir Propp's idea that there are a limited number of character types in narratives, including villains, heroes, donors, helpers, and princesses. It also describes Tzvetan Todorov's theory that narratives can be broken into codes like action, reference, semantics, enigma, and symbolism. Finally, it discusses genre theory and how genres are recognizable through codes and conventions, but also change over time through hybridization and reflecting social values.