is a Past-President of the Società Italiana di Scienza Politica (2008-10). He is the founder and Director of federica.eu, the largest worldwide provider of open access multimedia courseware in Italian. He has published books, journal articles and newspaper columns in several areas, including state theory, political parties, executive elites, political communication and concept analysis. He is the author, with Theodore J. Lowi, of Hyperpolitics. An Interactive Dictionary of Political Science Concepts, University of Chicago Press (2010). His latest publications in Italian include: Il partito personale (Laterza, 2000 and 2010), La democrazia del leader (Laterza, 2016) and (with Fortunato Musella) Il Principe digitale (Laterza 2019).