The Navajo religion is based on a central core of doctrine and philosophy which the author sketched understandingly in her introduction. This embodies broad ideas that one recognizes immediately as part of the reservoir of universal religious thinking. The Navaho, largest and most colorful Indian tribe in the United States, is superficially the best known. ?Navajo Religion; a Study of Symbolism? tries to demonstrate that there is much more to the dance, song, and sand-painting than the primitiveness that meets the casual eye; that there is a religious system which has for years enabled the Navajo to retain their identity in a rapidly changing world.