Extremely clear writing style. Parsons assumes only an intro level of philosophical knowledge. He is rarely condescending and this is particularly refreshing in the era of in-your-face atheism. Still, every now and then Parsons can't help but sneer. For example, in his conclusion Parsons writes,
"What rightly offends secular humanists is the...persecuting zeal that all too often accompany theistic belief...[like] the crusade against abortion..." (p145).
He then states that this sometimes leads atheists to shout: "Crush the infamous thing!" (the "thing" is institutional theism). However, I think Parsons assumes too much here. The biggest assumption is that one needs to be religious (or use religious arguments) to oppose abortion. I want to note that there are atheists strongly opposed to abortion. Patrick Lee has penned a brilliant, secular defense of the pro-life position called "Abortion and Unborn Human Life." Lee is not an atheist, but he makes a secular, pro-life argument. Thus, it is a mistake to automatically link pro-life arguments to religious arguments.
This contention on my part, however, is minor; save for this one example, Parsons handles the theist/atheist debate very gracefully. Overall, the book is excellent. If you're interested in the God debate, you need to read this. Very much recommended.