From his earliest work - on personal identity - to his last - on the value of truthfulness - Bernard Williams' ideas and arguments have been sometimes controversial, often influential, and always worth studying. Mark Jenkins provides a comprehensive account of Williams' many significant contributions to contemporary philosophy and his relation to the work of other philosophers, including prominent forerunners such as Hume and Nietzsche and contemporary thinkers such as, Nagel, McDowell, MacIntyre, and Taylor. Topics considered include personal identity, various critiques of moral theory, practical reasoning and moral motivation, truth and objectivity, and the relevance of ancient Greece to modern life. While Williams' work is fragmentary and resistant to familiar labels, Jenkins reveals the recurring themes and connections within his writings, and the philosophical underpinnings to his work.