Bente Kiilerich is professor of art history at the University of Bergen, Norway; she has published widely on Greek, late antique and Byzantine art, and on the classical tradition in contemporary art, and is a former president of the Norwegian Committee for Byzantine Studies. Hjalmar Torp is professor emeritus of medieval art history at the University of Oslo, Norway; he spent five months in Thessaloniki in 1953–54 studying the Rotunda mosaics, on which he has subsequently published many studies, and in 1981 he received the St Demetrius silver medallion from Panteleimon, the Metropolites of Thessaloniki.

• IntroductionThe Roman RotundaThe Conversion into a ChurchOverview of the Mosaic DecorationsThe Date of the MosaicsThe Silver VaultThe Martyr ZoneThe Medallion of Christ Supported by Flying AngelsThe Mosaic TechniqueAesthetic Aspects of the MosaicsTimelineSelect Bibliography