In this unique love letter to the United States, Gaiman manages to celebrate its underground spiritual traditions, glory in the magnificence of its landmarks, landscapes, and bizarre tourist traps, and--most important--both mourn and venerate its pagan (often immigrant) gods in decline, battered and diminished though they may be by the shallowness and speed of our technological world. The gods are indeed the best part of this very good book: degenerate and threadbare, yet still gods, capable of inspiring both allegiance and terror.
Gaiman loves not only fantasy, but also mystery and horror, and here he has constructed a book which fulfills the genre requirements of all. The plot is complicated and crammed with marvels: the beginning promises pleasures and horrors, the middle disturbs the balance, and the ending surprises and yet satisfies.