The evolution through natural selection - the unconscious, automatic, blind, but essentially non-random process discovered by Darwin - provides the unique answer to the greatest of all questions: Why do we exist? This is the subject of The Blind Watchmaker, the book that has been honored with the Faraday Award of the Royal Society of London, has been adapted into a television film by the BBC, has been translated into many languages, and is a perennial worldwide bestseller.