John Zizioulas (b. 1931) is an Eastern Orthodox theologian and titular Metropolitan of Pergamon, under the Ecumenical Patriarchate of Constantinople. Zizioulas first studied at the University of Thessaloniki but eventually graduated with
a degree in theology from the University of Athens in 1955. He then studied
patristics under Georges Florovsky at Harvard Divinity School where he received his MTS in 1956 and earned his doctorate in theology from the University of Athens in 1965. Zizioulas
was professor of theology for 14 years at the University of Glasgow and the University of Edinburgh (both in Scotland), and has been a visiting professor at the University of Geneva, Gregorian University, and King's College, London. He was consecrated
as a bishop on June 22, 1986 and named Metropolitan of Pergamon.
- Remembering the Future: An Eschatological Ontology. T&T Clark, 2010.
- Lectures in Christian Dogmatics. T&T Clark, 2009.
- Communion & Otherness: Further Studies in Personhood and the Church. T&T Clark, 2007.
- Being and Communion: Studies in Personhood and the Church. St Vladimirs Seminary Press, 1997.
- Eucharist, Bishop, Church: The Unity of the Church in the Divine Eucharist and the Bishop During the First Three Centuries. Holy Cross, 2001.
- Douglas Knight, ed.
The Theology of John Zizioulas: Personhood and the Church. Ashgate, 2007.