The Language of Images in Medieval England 1200-1400., 1200-1400.
Incidental references to B.7.132 and B.12.186-91 (Piers learning literacy from Abstinence the Abbess, felons saved from the gallows by being able to read Ps. 16).
Age of Chivalry: Art in Plantagenet England 1200-1400. Ed. Jonathan Alexander and Paul Binsky. London: Royal Academy of Arts; London: Weidenfeld and Nicolson, 1987. 33-40.