Doug Groothuis, Ph.D., is Assistant Professor of Religion and Ethics at Denver Seminary and is a well known speaker and writer on the New Age movement. He has authored four other b...ver maisDoug Groothuis, Ph.D., is Assistant Professor of Religion and Ethics at Denver Seminary and is a well known speaker and writer on the New Age movement. He has authored four other books, including Unmasking the New Age, Christianity That Counts, and Deceived by the Light.ver menos