I work on the history of modern philosophy, especially Kant, and on the history of aesthetics. I have worked on Kant's epistemology and metaphysics, his moral and political theory, and on his aesthetics, and on issues in both epistemology and aesthetics in a wide range of other authors. I am also one of the General Co-Editors of the Cambridge Edition of Kant, for which I translated three volumes of Kant's works. Thirteen volumes of this edition have been published and two more are in press as of September, 2011; only one remains to be completed. My recent works include the first English translation of an extensive selection of Kant's posthumous Notes and Fragments (2005) in the Cambridge Edition; a survey of Kant, called simply Kant (2006); a Reader's Guide to Kant's Groundwork for the Metaphysics of Morals (2007); and three collections of my essays, Kant's System of Nature and Freedom (2005), Values of Beauty: Historical Essays in Aesthetics (2005), and Knowledge, Reason, and Taste: Kant's Response to Hume (2008). In August, 2011, I completed a three-volume history of modern aesthetics from the eighteenth through the twentieth centuries, entitled The Evolution of Modern Aesthetics: Truth, Feeling, and Play; it will appear soon. My next project will be a book on the impact of Kant's moral philosophy on the subsequent history of philosophy, as part of a series on The Legacy of Kant that I am editing for Oxford University Press, which will also include volumes by Michael Friedman, Sebastian Gardner, Howard Williams, and Paul Frank.