Philip J. Deloria (Dakota descent) is professor of history at Harvard University and the author of Indians in Unexpected Places and Playing Indian. His most recent book, coauthored with Alexander I. Olson, is American Studies: A User¿s Guide. He is a trustee of the Smithsonian Institution¿s National Museum of the American Indian, where he chairs the Repatriation Committee; a former president of the American Studies Association; and an elected member of the American Academy of Arts and Sciences.