He is author of "Nachituti's Gift: Economy, Society, and Environment in Central Africa" and numerous articles on African social, cultural, and environmental history. Shepard Krech III is a professor emeritus of anthropology at Brown University and a research associate in the Department of Anthropology, National Museum of Natural History, Smithsonian Institution. A trustee of the National Humanities Center, he is the author or editor of many essays and books, including "The Ecological Indian" and "The Encyclopedia of World Environmental History," edited with John McNeill and Carolyn Merchant.