The Portable Atheist: Essential Readings for the Non-Believer (2007) is a book by Christopher Hitchens, the #1 New York Times best-selling author of God Is Not Great. He was a contributing editor to Vanity Fair. Hitchens wrote introductions to each article he compiled for this anthology. The main introduction is centered on an unbeliever´s point of view, what he is constantly told, “and the errors incurred by religion, since the pre-history of our species, in identifying not just the wrong explanation but the wrong culprit in episodes of nightmarish ignorance and calamity”.