World Christian Encyclopedia: A Comparative Survey of Churches and Religions in the Modern World, A.D. 1900-2000

This work systematically describes, in fourteen sections, the extent, status, and characteristics of the Christian religion, its 150 major ecclesiastical traditions and 20,800 distinct denominations, dioceses, jurisdictions, missions, assemblies, and fellowships. Fully ecumenical in its
presentation, the book treats Christianity in the context of all the great world religions, and the so-called "new religions", as well as atheism, agnosticism, secularism, and Marxism.