God exists is the last book of the philosopher Antony Flew, written in collaboration with Roy Abraham Varghese. This is a revolutionary work, because Flew was the acme of Anglo-Saxon philosophical atheism in the second half of the twentieth century; his "change sides?" atheism to deism? in 2004 was so glossed by one commentator: "It is as if the pope announced that he now thinks that God is a myth." The surprising turn of the "Pope of atheism" is the main theme of this book.

But he Flew did not abandon atheism by any mystical enlightenment, but following strictly rational arguments and interpreting the findings of cutting-edge science. Therefore, beyond the intellectual biography of the author, and even beyond the specific reasoning which led the philosopher to accept that there is a foundational intelligence of the cosmos, this work provides an invaluable testimony to the confidence in reason and how this is the best way of access to reality.