The "Great Church in Captivity: A Study of the Patriarchate of Constantinople" by Steven Runciman is a comprehensive textbook that delves into the history of the Patriarchate of Constantinople from the eve of the Turkish Conquest to the Greek War of Independence. Published by Cambridge University Press in 1985, this 468-page trade paperback offers insights into the complexities of the European and Middle Eastern history, specifically focusing on Turkey. Runciman's detailed account provides a valuable resource for those interested in travel, history, and the dynamics of religious and political power in the region.