The Spiritual Vision of Frank Buchman is an in-depth look at the life, influence, and ideology of one of the most original figures in twentieth century religion. Frank Buchman (1878–1961), the man behind the Oxford Group and Moral Re-Armament movements, had foundations as a Lutheran pastor, evangelist, and active member of the American Student Christian Movement. His beliefs evolved as a response to the emergence of global society leading him to develop a world philosophy that could speak to different religions and cultural traditions. His contributions to conflict resolution between nations and his promotion of inter-faith dialogue solidified his influence. While his teachings elicited support across faiths, there were also many who doubted its place in Christian tradition, and he was often accused of being pro-communist, anti-imperial, and a Nazi sympathizer. Philip Boobbyer’s book is the first scholarly treatment of Buchman’s work, theology, and ideology, and an addition to a growing corpus of scholarly literature on the Oxford Group and Moral Re-Armament movements. Boobbyer shows how Buchman’s life reflects broader processes in twentieth century religion and politics and how his work exemplifies the ways in which religious thinkers and groups sought to make themselves relevant to the ideological conflicts of modernity without sacrificing their core beliefs.