Diana Eck's academic work has a dual focus—India and America. Her work on India focuses on popular religion, especially temples and places of pilgrimage, called tirthas. Her books include Banaras: City of Light and Darsan: Seeing the Divine Image in India. Her most recent work, India: A Sacred Geography, was published in 2012.
Her work on the United States focuses especially on the challenges of religious pluralism in a multireligious society. Since 1991, she has headed the Pluralism Project, which explores and interprets the religious dimensions of America's new immigration; the growth of Hindu, Buddhist, Sikh, Jain, and Zoroastrian communities in the United States; and the new issues of religious pluralism and American civil society.
Professor Eck is also a faculty member in the Harvard Divinity School.