Chrysostomos Α. Stamoulis is Professor of Dogmatic and Symbolic Theology at the Department of Theology of the Aristotle University of Thessaloniki. In 2011-2013 he served his first term in office as Head of the Department of Theology and was re-elected for a further term (2013-2015). His major works include: Theotokos and Orthodox Dogma. A Study in the Theology of St Cyril of Alexandria, Thessaloniki 2003 (1996); On Light. Personal or Natural Energies? A Contribution to the Contemporary Debate on the Holy Trinity in the Orthodox World, Thessaloniki 2007 (1999). Sacred Beauty. An Introduction to the Philocalic Aesthetics of Orthodoxy, Akritas Publications 2010 (2004, 2005, 2008). He will speak on the theme “Christ's Dialogue with the City and the Sirens of Greed: Introductory Comments on John Chrysostom”.