One the deciding factors for me, on whether I have really enjoyed a book, is how long I think about it after I have finished reading it. Frustrating as it can be, I do love it when a book ends in such a way that the outcome is open to your own interpretation. I often find myself thinking about it while I am doing some other kind of mundane task, and trying to figure out what exactly happened. I have just finished reading "The Greatcoat" by Helen Dunmore, and although it was a little far fetched in places, as it was supposed to be, I can't help trying to figure out if somethng suggested by the author could actually have happened. The obvious answer is that of course it couldn't, but I am still wondering. Do other people find themselves wondering the same things about books?