The Transformation of Islamic Art during the Sunni RevivalThe transformation of Islamic architecture and ornament during the eleventh and twelfth centuries signaled profound cultural changes in the Islamic world. Yasser Tabbaa explores with exemplary lucidity the geometric techniques that facilitated this transformation, and investigates the cultural processes by which meaning was produced within the new forms. Iran, Iraq, and Syria saw the development of proportional calligraphy, vegetal and geometric