Yasser TabbaaYasser Tabbaa was Dorothy Kayser Hohenberg Chair of Excellence in the Department of Art at the University of Memphis until his retirement in 2014. He is the author of Constructions of Power and Piety in Medieval Aleppo (Pennsylvania State Univrsity Press, 1997), The Transformation of Islamic Art during the Sunni Revival (University of Washington Press, 2001; paperback edition, 2002), Najaf: The Gate of Wisdom, in collaboration with Sabrina Mervin (UNESCO, 2014) and The Ayyubid Era: Art and Architecture in Medieval Syria with A. Moaz, V. Daiber & Z. Takeiddin (MWNF, 2015). Read More Read Less