This introductory guide to Louis Althusser provides the first major overview of his work since the publication in French of thousands of pages of essays, books, and letters unknown before 1990. Focusing on Althusser's writing on art, theater, and literature, Warren Montag traces the contradictory development of Althusser's thought from the early 60s to his autobiography, The Future Lasts Forever. Montag also explores how Althusser's reflections on reading can shed new light on well-known texts such as Heart of Darkness and Robinson Crusoe.