Celebrated and controversial biologist, Richard Dawkins comfortably wears the mantle "Revolutionary Evolutionist". Dawkins became a worldwide phenomenon with the publication of The Selfish Gene, which popularised a gene-centred view of evolution. With The Blind Watchmaker, a searing criticism of creationism and intelligent design, and The God Delusion, Dawkins' audience continued to grow. The God Delusion has now sold more than 1.5 million copies in English and has been translated into 31 languages. With his new book, The Greatest Show on Earth, Dawkins returns to evolutionary biology, as he takes on those who question evolution through natural selection.