Douglas R. Groothuis (PhD, Philosophy, University of Oregon) is professor of philosophy at Denver Seminary in Denver, Colorado. He has also been a visiting professor or adjunct faculty member at Fuller Theological Seminary (Colorado Springs extension), Metropolitan State College of Denver, Westminster Theological Seminary (California campus), University of Oregon, New College Berkeley and Seattle Pacific University.His articles have been published in professional journals such as Religious Studies, Sophia, Theory and Research in Education, Philosophia Christi, Themelios, Think: A Journal of the Royal Institute of Philosophy, Christian Scholar's Review, Inquiry and Journal of the Evangelical Theological Society. He has written several books, including Truth Decay, In Defense of Natural Theology (coeditor), Unmasking the New Age, Jesus in an Age of Controversy, Deceived by the Light, The Soul in Cyberspace, and, in the Wadsworth Philosophers Series, On Pascal and On Jesus.