Theophilus and the Theory and Practice of Medieval Art  Heidi C. Gearhart  Theophilus and the Theory and Practice of Medieval Art  Heidi C. Gearhart  "A significant and meaningful scholarly contribution to our understanding of the complexity of Theophilus's approach and the Christian meanings imbedded within his prologues and instructions. Without a doubt, readers today will understand in new and fascinating ways the more profound role On Diverse Arts likely played for twelfth-century monastic artists and patrons alike."  - Kate Dimitrova, CAA.Reviews  