A book you've read more than 3 times
As a librarian, re-reading books doesn't happen often at all. You are usually so inundated with new material on a weekly basis that taking time to re-read something means sacrificing something else that you haven't read before and could possibly love.
The last time I re-read a book was when I was on maternity leave last year. I was feeling happy and nostalgic and so I re-read two books: my Favorite Book (that's day 30), and Bridget Jones's Diary. BJD was a gift from my best friend several years ago during college (when I read it twice) and reminds me of my friendship with her and is also a guilty indulgence into frivolous, hilarious, irreverent chick lit.
Since then, I've actually checked out the audiobook versions of books that I have read: The Hunger Games and Life As We Knew It. The audiobook versions were every bit as amazing as the actual books, and kept me sitting in the car long after I had gotten home just to hear what happened next (even though I already knew). I will probably read both of those again so they also sort of count as 3.
So what about you? Do you have a favorite book that you like to re-read every now and then? What times of the year do you find yourself wanting to re-read books?