The twentieth century was one of the most significant and exciting periods ever witnessed in philosophy, characterized by intellectual change and development on a massive scale. The Routledge Companion to Twentieth Century Philosophy is an outstanding authoritative survey and assessment of the century as a whole. Featuring twenty-two chapters written by leading international scholars, this collection is divided into five clear parts and presents a comprehensive picture of the period for the first time: major themes and movements; logic, language, knowledge and metaphysics; philosophy of mind, psychology and science; phenomenology, hermeneutics, existentialism, and critical theory; politics, ethics, aesthetics. Featuring annotated further reading and a comprehensive glossary, The Routledge Companion to Twentieth Century Philosophy is indispensable for anyone interested in philosophy over the last one hundred years, suitable for both expert and novice alike.