Textiles and Weavers in Medieval South India, Oxford University Press, 2nd edition, 2006.
Walking Naked: Women, Society, Spirituality in South India, Indian Institute of Advanced Study, 2nd revised edition, 2007.
Biography as History, co-ed. book, Orient Blackswan, 2009
Historical Dictionary of the Tamils, Scarecrow Press, Maryland, 2007.
A to Z of the Tamils, Scarecrow Press, Maryland, 2010.