Dr. Ruth Langer is Professor of Jewish Studies in the Theology Department at Boston College, and Associate Director of its Center for Christian-Jewish Learning. She is also chair of the Council of Centers on Jewish-Christian Relations. She is author of Jewish Liturgy: A Guide to Research (Rowman & Littlefield, 2015); Cursing the Christians?: A History of the Birkat HaMinim (Oxford University Press, 2012); To Worship God Properly: Tensions between Liturgical Custom and Halakhah in Judaism(Hebrew Union College Press, 1998). She also co-edited Liturgy in the Life of the Synagogue (Eisenbrauns, 2005), and has published numerous articles.