Audio books have been discussed a bit before, but I never saw a list of recommendations. What books are good in an audio format (especially ones that can be listened to while driving)? I commute 45 minutes a day and would like to put that time to good use.
ETA: I'm mostly interested in non-fiction (goal here is to learn useful stuff, as opposed to entertainment).
The Poisonwood Bible is a great novel, but I enjoy it much more in audio. The story has five first person narrators, and the voice acting of the reader is very strong and makes it easy to know who you are listening to. My family ended up with two copies, since we lent it out so much.