Amazon.com Product Description (ISBN 0618680004, Hardcover)

A preeminent scientist -- and the world's most prominent atheist -- asserts the irrationality of belief in God and the grievous harm religion has inflicted on society, from the Crusades to 9/11.

With rigor and wit, Dawkins examines God in all his forms, from the sex-obsessed tyrant of the Old Testament to the more benign (but still illogical) Celestial Watchmaker favored by some Enlightenment thinkers. He eviscerates the major arguments for religion and demonstrates the supreme improbability of a supreme being. He shows how religion fuels war, foments bigotry, and abuses children, buttressing his points with historical and contemporary evidence. The God Delusion makes a compelling case that belief in God is not just wrong but potentially deadly. It also offers exhilarating insight into the advantages of atheism to the individual and society, not the least of which is a clearer, truer appreciation of the universe's wonders than any faith could ever muster.

Amazon.com Product Description (ISBN 0618918248, Paperback)

In his sensational international bestseller, the preeminent scientist and outspoken atheist Richard Dawkins delivers a hard-hitting, impassioned, but humorous rebuttal of religious belief. With rigor and wit, Dawkins eviscerates the arguments for religion and demonstrates the supreme improbability of the existence of a supreme being. He makes a compelling case that faith is not just irrational, but potentially deadly. In a preface written for the paperback edition, Dawkins responds to some of the controversies the book has incited. This brilliantly argued, provocative book challenges all of us to test our beliefs, no matter what beliefs we hold.