He is the author of Freedom and Anthropology in Kant's Moral Philosophy (Cambridge University Press, 2003). He has also published various articles on Kant and Kant's anthropology, on Adam Smith and on environmental ethics. Paul Guyer is Professor of Philosophy and Florence R. C. Murray Professor in the Humanities at the University of Pennsylvania. He is the author of nine books on Kant, including Knowledge, Reason, and Taste: Kant's Response to Hume (2008), and Values of Beauty (Cambridge University Press, 2005). He has edited numerous volumes on Kant, and is general co-editor, with Allen Wood, of The Cambridge Edition of the Works of Immanuel Kant.