Gülru Necipoglu (PhD, Harvard University, 1986) is the Aga Khan Professor and Director of the Aga Khan Program for Islamic Architecture at Harvard University. Her books include Architecture, Ceremonial and Power: The Topkapi Palace in the Fifteenth and Sixteenth Centuries (1991), The Topkapi Scroll: Geometry and Ornament in Islamic Architecture (1995), and The Age of Sinan: Architectural Culture in the Ottoman Empire (2005). She recently edited The Arts of Ornamental Geometry: A Persian Compendium on Similar and Complementary Interlocking Figures (2017) and A Companion to Islamic Art and Architecture in the Wiley Blackwell Companions to Art History series (co-editor F. Barry Flood, 2017).