Luca Diotallevi (Terni, 1959) is a full professor of sociology at Roma TRE University. He graduated in philosophy from La Sapienza University of Rome and obtained his PhD in sociology from the University of Parma. He has also studied at the universities of Bielefeld, Oxford, Harvard and Cambridge. He is a senior fellow at the Centre for the Study of World Religions at Harvard Divinity School. He is currently coordinator of the PhD programme in “Educational and Social Theory and Research” at the Department of Education Sciences at Roma TRE University. His publications include: L’ordine imperfetto (Rubbettino, Soveria Mannelli). Religion and State in the 21st Century: the Alternative between Laïcité and Religious Freedom. In: (edited by): Titus Hjelm, Is God Back?: Reconsidering the New Visibility of Religion. London: Bloomsbury Academic. Fine corsa. La crisi del cristianesimo come religione confessionale (Dehoniane, Bologna). Il paradosso di Papa Francesco (Rubbettino, Soveria Mannelli).