In an Open Thread comment beriukay mentioned that he's reading C.S. Lewis' Mere Christianity. I've been reading it too, for interesting reasons.
In my case it so happened that I started discussing faith with a long-time online friend whose spiritual views I didn't yet know, and he turned out to be a Christian with a high regard for the Bible, who also has an interest in science. As our discussion turned to our readings on spirituality, I acknowledged (I think it was me) that I probably spent more time on books that reinforce my point of view than on books that challenge it, perhaps a case of confirmation bias. (I've been exposed to many poor arguments for Christianity, and dismissed them; but possibly that was largely a function of having started out with that bottom line already written and picking arguments I wouldn't have much trouble refuting.)
In the spirit of experiment we agreed to a "trade" - he would read (thoughtfully and with an open mind) a book of my choosing on reasons to doubt faith, and I'd do the same with a book he chose on Christianity.
So the idea here is to pick a book that's the "best argument from the other side" (as in quote 3 here).
I recommended The God Delusion - I'm not sure if that's the best choice given the above intent, but it's what came to mind on the spot.
Would you make a different choice? If so, what?
I think Dallas is going in the right direction here. It's not enough to convince someone that God is impossible- you need to give them a replacement. (And convincing someone that the Church is a harmful force- when they don't get the impression their local church is- is difficult and probably not worthwhile.) For example, as mentioned elsewhere the primary argument of Mere Christianity is probably "Christianity is an optimized meme for getting humans to believe it- that's evidence for humanity being built around the meme." The counterargument is that the meme is built around humanity- but to do that you need naturalistic explanations for all the pieces that Christianity relies on, like the feeling of universal (i.e. built-in) morality.
If you are going to recommend Dawkins, I suggest The Selfish Gene, as it's the best explanation of evolution that I've come across (and once they believe in evolution, they're on the path to realizing God is unnecessary).
Evolution is no threat to religion. Natural selection, explaining and predicting evolution is a threat to religion.
Indeed, one can usefully define any belief system as quasi religious if it finds natural selection threatening. If that belief system piously proclaims its admiration for Darwin while evasively burying his ideas, attributing to him common descent, rather than the explanation of common descent, then that belief system is religious, or serves the same functions and has the same problems as religion.
The trouble is that natural selection implies... (read more)