This book offers a radical reappraisal of the nature and significance of Wittgenstein s thought about ethics from a variety of different perspectives. The book includes essays on Wittgenstein s early remarks on ethics in the Tractatus Logico-Philosophicus, on his 1929 "Lecture on Ethics," and on various aspects of Wittgenstein s later views on ethics in the Philosophical Investigations and elsewhere. Together, the essays in this volume provide a comprehensive assessment of Wittgenstein s moral thought throughout his work, its continuity and development between his early and later work, and its connections with other aspects of his thought. Featuring fourteen original contributions written by internationally renowned Wittgenstein scholars, Wittgenstein s Moral Thought opens up a new understanding of ethics that diverges from prevailing views prominent in contemporary discussions of the subject.