Professor Delph taught courses on Europe in the Middle Ages, and on European culture and society in the Renaissance and Reformation eras. His specialty is Renaissance Italy, and he frequently teaches his course, "Power, Place and Image in Florence and Rome," in these two lovely Italian cities over winter break, accompanied by Eastern students.
His articles appear in the Encyclopedia of World History, and the Encyclopedia of the Reformation. Book reviews appear in Erasmus of Rotterdam Society Yearbook, Catholic Historical Review, and Sixteenth Century Journal.