This is the sort of book that justifies the purchase of a Kindle - without it I probably wouldn't have read it. I read it as:
a) an English Literature undergraduate, and
b) someone brought up in the Catholic faith
Absolutely fascinating, carefully reasoned and persuasive. A historical record of the growth of Christianity and the way it, and in particular Catholicism, became more powerful than secular governments. The basic premise of the book is (SPOILER) that religion holds that it is and always has been the ultimate infalliable truth, and therefore was obliged to oppose science when it proved that religious tenets such as a flat earth were false. Scientific progress was untenable in the face of an omniscient God, and this led to conflict. (END SPOILER)
The author tries - and mostly succeeds - to be even-handed but he is by turns amused, angered and horrified by the measures taken to preserve the status quo.
Not an anti-God book - more an anti-organised religion book.