This volume examines afresh the various ways in which the introduction of ancient and Arabic optical theories transformed thirteenth-century thinking about vision, how scientific learning came to be reconciled with theological speculation, and the effect these new developments had on those who learned about them through preaching.

Le règne de Charlemagne reconsidéré.

Winner of the 2018 DeLong Book History Prize, awarded by the Society for the History of Authorship, Reading and Publishing (SHARP).