Erin Brigham is the executive director of the Joan and Ralph Lane Center for Catholic Social Thought and the Ignatian Tradition at the University of San Francisco, where she also teaches in the theology and religious studies department. She earned her PhD in systematic and philosophical theology at the Graduate Theological Union in 2010 and continues to research in the areas of Catholic public theology and social thought as well as postconciliar ecclesiology and ecumenism. Her books include Sustaining the Hope for Unity: Ecumenical Dialogue in a Postmodern World (Liturgical Press, 2012), See, Judge, Act: Catholic Social Teaching and Service Learning (Anselm Academic Press, 2013; revised edition, 2018) and, coedited with Mary Johnson, Solidarity Toward the Common Good: Women Engaging the Catholic Social Tradition (Paulist Press, forthcoming 2022).