Greg earned his MA from Trinity School of Divinity before continuing on to finish his PhD at Northwestern University. The intersection of theology, history, philosophy and sociology is Greg’s primary focus both in teaching and writing. He has taught graduate-level courses on apologetics, theology, history, leadership, the New Testament, ethics, and Christian Thought at American, European, and Asian institutions of higher learning. His book, Willow Creek Seeker Services, has been published in four languages. Currently, Greg serves as the President of the Forum of Christian Leaders and as the Director of the European Leadership Forum. He, his wife, Lori, and their three children reside in Naperville, IL.