Valk is a specialist in oral history, public history, and the social history of 20th century United States. Before coming to The Graduate Center, she was associate director for public humanities and a lecturer in history at Williams College, where she taught experiential and community-based classes in oral history and public history. Prior to that, she was associate professor of history and director of women’s studies at Southern Illinois University Edwardsville and deputy director of the Center for Public Humanities at Brown University. She has written extensively in the areas of women’s history, history of feminism, and oral history. Her books include Radical Sisters: Second-Wave Feminism and Black Liberation in Washington, DC, 1968-1980 and Living with Jim Crow: African American Women and Memories of the Segregated South, co-authored with Leslie Brown and recipient of the 2011 Oral History Association Book Prize. Valk has served as president of the Oral History Association and is book series editor of the Oral History Series published by Oxford University Press.