Dr. Darrell Likens Guder is a theologian and missiologist who is Professor of Missional and Ecumenical Theology Emeritus at Princeton Theological Seminary where he served as Henry Winters Luce Professor of Missional and Ecumenical Theology from 2002-2015 and as Dean of Academic Affairs from 2005-2010. He received his PhD from the University of Hamburg. As an ordained Presbyterian minister, he served as a student outreach pastor and as a faculty member of the Karlshohe College in the German Lutheran Church. His writing and teaching focus on the theology of the missional church, especially the theological implications of the paradigm shift to post-Christendom as the context for Christian mission in the West. He has served as secretary-treasurer of the American Society of Missiology (ASM) and was president of the ASM from 2007–2008.