Sidney Tarrow is a leading scholar in the field of social movements and contentious politics and is cur'rently working on a book tentatively titled 'War, States, and Contention'. Tarrow (PhD, Berkeley, 1965) is the Emeritus Maxwell M. Upson Professor of Government at Cornell University. Tarrow has his BA from Syracuse, his MA from Columbia, and his PhD from Berkeley. His work has covered a variety of interests, beginning with his book Peasant Com'munism in Southern Italy (Yale, 1967), then shifting to the comparative study of Com'munism in Italy and France (Princeton 1972, ed., with Donald L.M. Blackmer). In the 1970s he compared local politics (Between Center and Periphery, Yale 1978), be'fore, in the 1980s, turning to a quantitative and qualitative reconstruction of the Ital'ian protest cycle of the late 1960's and early 1970's, in Democracy and Disorder (Oxford, 1989), which received the prize for the best book in Collective Behavior and Social Movements from the American Sociological Association. A fellow of the American Academy of Arts and Sciences, Tarrow has served as Program co-Chair of the American Political Science Association Annual Convention and as President of the APSA Section on Comparative Politics. His most recent books are Power in Move'ment (Cambridge, 2011), Dynamics of Contention (with Doug McAdam and Charles Tilly, Cambridge, 2001), Contentious Europeans (with Doug Imig, Rowman and Littlefield 2001), Transnational Protest and Global Activism (with Donatella della Porta, Rowman and Littlefield, 2004), The New Transnational Activism (Cambridge, 2005), Contentious Politics (with Charles Tilly, Paradigm, 2006), and Strangers at the Gates: States and Movements in Conten'tious Politics (Cambridge, 2012). He has recently completed The Language of Contention, 1688-2012 for Cambridge.