In this collection of nine essays, Umberto Eco sets forth a dialectic between 'open' and 'closed' texts, between a work of art that actively involves the 'addressee' in its production and one that holds the 'addressee' at bay and seeks to evoke a limited and predetermined response. He investigates the contributions of contemporary semantics to the study of narrative, and connects the modalities of textual interpretation with the problem of possible worlds.