Visiting Lecturer Roman Art, Faculty of Classics, Institute of Archaeology, Oxford, UK.
Roman Art and Archaeology, especially Roman Britain, Glyptics and the minor arts, changes in artistic culture.
Books Written :
Corpus of Roman Engraved Gemstones from British Sites (BAR 8, 1974 with a revised edition in 1978).
The Lewis Collection of Engraved Gemstones in Corpus Christi College, Cambridge (BAR suppser.1,1975).
(with Mary Whiting) Engraved Gems from Gadara in Jordan (OUCA monograph 6, 1987).
The Content Family Collection of Ancient Cameos, (Ashmolean Museum 1990)
Classical Gems: ancient and modern intaglios and cameos in the Fitzwilliam Museum, Cambridge (CUP 1994)
Religion in Roman Britain (Batsford 1984; second edition 1995)
CSIR Great Britain I.7. The Cotswold Region (British Academy 1993)
The Art of Roman Britain (Batsford 1995)
Books Edited :
(with Julian Munby) Roman Life and Art in Britain. A celebration in honour of the eightieth birthday of Jocelyn Toybee (BAR Brit. ser.41, 1977)
(with Anthony King) The Roman West in the Third Century (BAR int.ser.109,1981)
A Handbook of Roman Art (Phaidon 1983)
(with Anthony King) Pagan Gods and Shrines of the Roman Empire (OUCA monograph 8, 1986)
Architecture and Architectural Sculpture in the Roman Empire (OUCA monograph 29, 1990)
(with Michael Vickers) Cameos in Context. The Benjamin Zucker Lectures, 1990 (Ashmolean Museum 1993)
(with David Davison) British Archaeological Reports. Past, present and future (Tempus Reparatum, 1996)