Robert Couzin’s Right and Left in Early Christian and Medieval Art is the first in-depth study of handedness, position, and direction in the visual culture of Europe and Byzantium from the fourth to the fourteenth century. Heretofore largely unnoticed or ignored, the pre-eminence of the right and lapses or intentional departures from that norm in medieval imagery are relevant to such major themes as iconography, visuality, reception, narrative, form, gender, production, and patronage. The author’s investigation of right and left in visual culture is informed by modern experimental...