This Companion examines the relationship between philosophy and literature. It shows how philosophy, like literature, aims to transform its reader. It maps four shared terrains-Truth, Value, Form, and Being-to show how philosophical argument and literary imagination illuminate one another. Written by leading scholars, this Companion ranges from ethics, politics, and law to fiction, film, question, metaphor, and literature's power to shape a life. Historically informed and forward-looking, it offers an accessible guide to a vibrant interdisciplinary field, demonstrating how philosophy and literature together make real, existential claims on how we think, read, and live.