No books for me, well as far as novels etc go. I know I wouldn't be able to concentrate on it enough to fully appreciate it.
I just take scraps of paper from around the house that I usually can't be bothered or don't have time to read...Super ann statements, hiking kit (or other) instructions, that little bushwalker editorial you get from various outdoor stores.
And once these snippets are read, foomp, into the fire they go...No lugging around War and Peace with me!