Sarah E. Igo (B.A., Harvard; Ph.D., Princeton) is Professor of History and Law and Director of American Studies at Vanderbilt University. She is the author of the award-winning The Averaged American: Surveys, Citizens, and the Making of a Mass Public, which was an Editor’s Choice selection of the New York Times and one of Slate’s Best Books of 2007.  Her latest book, The Known Citizen, has been widely reviewed and was one of the Washington Post's “Notable Non-Fiction Books of 2018.”