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).
Audiobooks for learning languages and for appreciating music benefit immensely from the audio format when they are designed for it.