The World’s Greatest Churches Great Courses DVD and Guidebook, authored by William R. Cook, is a comprehensive textbook focused on the subject area of religion. Published by Teaching Company, LLC, T.H.E. in 2014, this publication is designed for adult education and further learning. The DVD format allows for immersive viewing of the world’s greatest churches, while the guidebook provides additional content and insights. This educational resource is a valuable tool for those interested in exploring the history and significance of iconic religious structures.