A historian of Early Modern / Modern Ashkenazic Jewry, she was educated at Harvard-Radcliffe College, The Jewish Theological Seminary, and Columbia University, where she earned her PhD in Jewish History in 1996. Prior to coming to Rutgers, Dr. Sinkoff was a Dorot Fellow in the Skirball Department of Judaic Studies at New York University. She is the author of Out of the Shtetl: Making Jews Modern in the Polish Borderlands (Brown Judaic Studies, 2004), for which she was awarded a Korot Foundation Subvention Publication Prize. Dr. Sinkoff is currently at work on a book-length historical study of Lucy S. Dawidowicz, an American-born historian of East European Jewry.