At UCL studied for BA (1980) and PhD (1991) (Settlement and Pottery of the Vinalopo Valley (Alicante), AD 400-700), which included a detailed review of ceramics and trade in W Mediterranean ports (publised as BAR 588 & 604 in 1993, 1995). Studied and published ceramics from excavations in Spain (Cartagena, Valencia), Roman Syria (Beirut, Homs, Basit, Zeugma), Albania (Butrint, Durres), Greece (Athens, Corinth, Thesproteia, Nicopolis-Actium) and North Africa (Carthage, Utica, Leptis Magna). The book Hispania and the Roman Mediterranean, AD 100-700: ceramics and trade was published in 2010. Co-editor of the Archaeopress (Oxford) series Roman and Late Antique Mediterranean Pottery.