Irfan Habib, professor emeritus at the Aligarh Muslim University, is the author of The Agrarian System of Mughal India, 1556-1707 (1963; revised edition 1999), An Atlas of the Mughal Empire (1982), Essays in Indian History: Towards a Marxist Perception (1995), Medieval India: The Study of a Civilization (2007), Economic History of Medieval India, 1200-1500 (with collaborators) (2011) and Atlas of Ancient Indian History (with Faiz Habib) (2012). He is the general editor of the People's History of India series, and has authored six volumes and co-authored two volumes in the series. He has co-edited The Cambridge Economic History of India, Vol. I (1982), UNESCO's History of Humanity, Vols. 4 and 5, and UNESCO's History of Central Asia, Vol. 5.