What books would you take on vacation?

I went to England to spend time with family, and, of course, I carried some books in my case. I did also take a tablet computer pre-loaded with kindle and kobo reads (plus a few pdfs), but I'm still neurotic about running out of battery power in the middle of nowhere. Real books, though heavy, do have the advantage that they don't need to plugged in on the plane. So... what did I take?

I didn't take I Am Pilgrim by Terry Hayes because it's too big and heavy, but I did read it during my tr...