What could Roman Catholicism and Mormonism possibly have to learn from each other? On the surface, they seem to diverge on nearly every point, from their liturgical forms to their understanding of history. With its ancient roots, Catholicism is a continuous tradition, committed to the conservation of the creeds, while Mormonism teaches that the landscape of Christian history is riddled with errors and apostasy and in need of radical revision and spiritual healing. Additionally, successful proselyting efforts by Mormons in formerly Catholic strongholds have increased opportunities for...