Ashraf `Ali Thanawi (1863-1943) was one of the most prominent religious scholars in Islamic history. Author of over a thousand books on different aspects of Islam, he defended the Islamic scholarly tradition and articulated its authority in an age of momentous religious and political change. Muhammad Qasim Zaman offers a comprehensive and highly accessible account of Thanawis multifaceted career and thought, whilst also providing a valuable introduction to Islam in modern South Asia.