Dr. Douglas Groothuis (Ph.D., University of Oregon) is a professor of philosophy at Denver Seminary. He is an expert on defending Truth in the postmodern world. Dr. Groothuis is the author of three books, including Truth Decay which has been complimented for its "brilliance and clarity" by James W. Sire, author of The Universe Next Door. Phillip Johnson, a great leader in the Intelligent Design movement, called Truth Decay a "solid, illuminating contribution to the ongoing debate among Christians about how to defend the gospel in a culture where the concept of objective truth is under siege." Dr. Groothuis has been praised by Richard Crombie, VP for CCU's College of Adult and Graduate Studies, Stephen Evans of Baylor University, the celebrated public intellectual Os Guinness, and others.