Alister was an atheist in his youth and converted to Christianity. He is a Professor of Science and Religion at Oxford University. He is well read and writes fairly well. He uses this book to justify his belief that his beliefs are better than those of atheists. He provides some valid points in that science evolves over time as new knowledge becomes available. He notes that science is not able to provide insight into all questions. He believes that science and Christianity are compatible. If this is the case, he brand of Christianity is not consistent with Christianity of the past or of the populace. His treatment of opposing views tends to be caustic at times. While I appreciate reading an alternative opinion, I find his arguments unconvincing. The author is biased by his beliefs. While he is entitled to his opinion, his opinions are not sufficiently justified. If interested in this topic, the book is at times thought provoking. ( )