- Imperial Rome and Christian Triumph: The Art of the Roman Empire AD 100-450 (Oxford History of Art)
- Art and the Roman Viewer: The Transformation of Art from the Pagan World to Christianity (Cambridge Studies in New Art History and Criticism)
- Pilgrimage in Graeco-Roman and Early Christian Antiquity: Seeing the Gods
- Roman Eyes: Visuality and Subjectivity in Art and Text
- Imagining the Divine: Art and the Rise of World Religions