Dr. Dirks specializes in Christian higher education, spiritual development, and Christian nurture. He has published chapters in Introducing Christian Education: Foundations for the 21st Century; Baker Dictionary of Christian Education; Christian Education: Foundations for the Future; Foundations of Ministry: An Introduction to Christian Education for a New Generation; and Harper's Encyclopedia of Religious Education. He has contributed articles and book reviews to the Christian Education Journal and Journal of Psychology and Theology. Dr. Dirks has addressed the North American Professors of Christian Education and Vocational Staff Conferences for Christian education leaders. He has been visiting professor or lecturer at schools in Singapore, Philippines, Russia, India, and Ukraine, and has consulted with numerous theological schools in the U.S. Dr. Dirks has a keen interest in spiritual development, teaching theory, and leadership methods in the church.