Sarah Igo is the Andrew Jackson Chair of American History at Vanderbilt University, with affiliate appointments in Law; Political Science; Medicine, Health and Society; and Sociology. A scholar of modern U.S. cultural and intellectual history, she writes about the human sciences, the sociology of knowledge, and the public sphere. Igo has authored two award-winning books— The Known Citizen: A History of Privacy in Modern America (2018), and The Averaged American: Surveys, Citizens, and the Making of a Mass Public (2007)—and is a co-author of a leading U.S. history textbook, The American Promise. As Dean of Strategic Initiatives, Igo led a far-reaching curricular reform in Vanderbilt’s College of Arts and Sciences that launched in 2025, and she has been deeply involved in a number of projects to reinvigorate liberal education nationally. She is currently the Faculty Director of Dialogue Vanderbilt, the university’s cross-campus initiative to promote open inquiry.