(I originally did a post with 8 books. It apparently didn't take, so I'll have to try to reconstruct it.
(2 yet to remember)
Hitchhikers Guide to the Universe -- Douglas Adams (Audio)
The Serpent on the Crown -- Elizabeth Peters (Audio)
Post Captain -- Patrick O'Brian (Audio)
HMS Surprise -- Patrick O'Brian (Audio)
The Vanishing Continent -- Bill Bryson
The Whole Truth -- David Baldacci (Audio)
------
The Mauritius Command -- Patrick O'Brian (Audio)
Desolation Island -- Patrick O'Brian (Audio)