American Indian historical demography, American Indian revitalization movements, American Indian winter counts, contemporary American Indian issues
1986 We Shall Live Again: The 1870 and 1890 Ghost Dance Movements as Demographic Revitalization (Cambridge University Press).
1987 American Indian Holocaust and Survival (University of Oklahoma Press).
1990 The Cherokees: A Population History (University of Nebraska Press).
1998 Editor. Studying Native America: Problems and Prospects (University of Wisconsin Press).
2007 Co-editor with Candace S. Greene. The Year the Stars Fell: Lakota Winter Counts at the Smithsonian (University of Nebraska Press and the Smithsonian Institution).
Awards & Grants
College of Social Sciences Sesquicentennial Lecture, The Florida State University, 2001
Distinguished Professorship, UCLA, 2004-
The Hail Lecture (with Candace Greene), Brown University, 2007