The late Hilary Sumner-Boyd was professor of humanities at Robert College, Bosphorus University. His magisterial work, The Seven Hills of Constantinople: A Study of the Byzantine and Turkish Monuments of the City, was unpublished at the time of his death in 1977 but has since been published by Bosphorus University Press.John Freely (1926-2017) was one of the most widely respected writers of travel books, histories and guides about Greece and Turkey. His works include The Grand Turk, Storm on Horseback, Children of Achilles, The Cyclades, The Ionian Islands, The Western Shores of Turkey, Strolling through Athens, Strolling through Venice and the bestselling Strolling through Istanbul (all I.B. Tauris).