Katia Buffetrille is research scholar at the École pratique des Hautes Études. She is the author or coeditor of several books. Donald S. Lopez Jr. is the Arthur E. Link Distinguished University Professor of Buddhist and Tibetan Studies in the Department of Asian Languages and Cultures at the University of Michigan. He is the author or editor of many books, including, most recently, Buddhism and Science: A Guide for the Perplexed and In the Forest of Faded Wisdom: 104 Poems by Gendun Chopel, a Bilingual Edition, both published by the University of Chicago Press.