Imperial Mecca illuminates the making of the modern Hajj and technocratic regimes in turn-of-the-twentieth-century Arabia. Dislodging conventional emphases such as European fears of the Ottoman caliphate, 'Pan-Islamism', or other forms of Muslim exceptionalism, Low vividly depicts how new travel, communication, and surveillance technologies, interlaced with related environmental and epidemiological factors, shaped the opportunities and limits of Ottoman and British imperial power. A tour de force on the Indian Ocean Hajj.–Faiz Ahmed, author of Afghanistan Rising: Islamic Law and Statecraft between the Ottoman and British Empires