Quickie recap: Franny, having survived a bizarre childhood, has quickly become disenchanted with the inauthenticity of those around her. Her solution is to try to find God, even though she can't quite believe in him. Her older brother Zooey, a product of the same strange environment, offers her advice to try to lead her to a different kind of enlightenment.
Quickie review: Salinger is a master of angsty, intellectual prose. This novel is a conversation piece, not just a pathway to spiritual illumination but a statement of belief in itself. Although Franny takes a decidedly Christian approach in her quest for God, it is clear that Salinger is more of a Zen man himself, deftly bringing his protagonist from a state of ignorance, through to confusion, and finally, to peace and wisdom.
Quickie recommendation: Om.