Richard Dawkins - The God Delusion

The God Delusion is a 2006 bestselling non-fiction book by British biologist Richard Dawkins, professorial fellow of New College, Oxford, and inaugural holder of the Charles Simonyi Chair for the Public Understanding of Science at the University of Oxford.

In The God Delusion, Dawkins contends that a supernatural creator almost certainly does not exist and that belief in a personal god qualifies as a delusion, which he defines as a persistent false belief held in the face of strong contradictory evidence. He is sympathetic to Robert Pirsig's observation in Lila that "when one person suffers from a delusion it is called insanity. When many people suffer from a delusion it is called religion."

As of November 2007, the English version of The God Delusion had sold over 1.5 million copies and had been translated into 31 other languages. It was ranked #2 on the Amazon.com bestsellers' list in November 2006. In early December 2006, it reached #4 in the New York Times Hardcover Nonfiction Best Seller list after nine weeks on the list. It remained on the list for 51 weeks until 30 September 2007. It has attracted widespread commentary, with several books written in response.

http://en.wikipedia.org/wiki/The_God_Delusion

This includes both the Audio Book and E-Book