Barber, Charles. 2007. Contesting the Logic of Painting: Art and Understanding in Eleventh-Century Byzantium. Visualising the Middle Ages. Vol. 2. Brill. Referenced from brill.com: Contesting the Logic of Painting: Art and Understanding in Eleventh-Century Byzantium.

Barber, Charles. 2002. Figure and Likeness: On the Limits of Representation in Byzantine Iconoclasm. Princeton University Press. Referenced from www.amazon.com: Figure and Likeness: On the Limits of Representation in Byzantine Iconoclasm.

Barber, Charles, ed. 2017. Michael Psellos on Literature and Art: A Byzantine Perspective on Aesthetics. Notre Dame Press. Referenced from undpress.nd.edu: Michael Psellos on Literature and Art: A Byzantine Perspective on Aesthetics.