Josiah Ober, Mitsotakis Professor in the School of Humanities and Science, works on historical institutionalism and political theory, focusing on democratic theory and the contemporary relevance of the political thought and practice of the ancient Greek world. He is the author of The Rise and Fall of Classical Greece (2015) and other books, mostly published by Princeton University Press, including Mass and Elite in Democratic Athens (1989), Political Dissent in Democratic Athens (2008), and Democracy and Knowledge (2008). He has also published about 85 articles and chapters, including recent articles in American Political Science Review, Philosophical Studies, Polis, Critical Review, and Transactions of the American Philological Association. Work in progress includes a book on "democracy before liberalism,” based on his Seeley Lectures, and a study of rational cooperation and useful knowledge in Greek political thought.