Douglas R GroothiusDouglas R. Groothuis, Ph.D., is a professor of philosophy at Denver Seminary, where he has served since 1993. He is the author or co-author of fourteen books, including the bestselling Unmasking the New Age, the much-used apologetics textbook Christin Apologetics, an introduction to philosophy, Philosophy in Seven Sentences, a memoir, Walking through Twilight, and a children's book, I Love You to the Stars (with Crystal Bowman). Read More Read Less