Evolutionary biologist and unapologetic atheist Richard Dawkins taught for many years at Oxford University as the Charles Simonyi Professor of the Public Understanding of Science. The Economist called his international bestseller, The God Delusion, "a particularly comprehensive case against religion." His other works include The Selfish Gene and The Blind Watchmaker. A follow-up to The God Delusion, The Greatest Show on Earth uses scientific evidence to argue the case for evolution.