I hugely enjoyed Italo Calvino's "If on a winter's night a traveler." A story about a reader reading a book -- the very book in question -- it manages to comment upon the nature of fiction, it's audience, why we read, how we are engaged by fiction, and we, as readers, like to know, or not know, about authors. Probably does some other things that I've forgotten, too. Here's one: It also plays a pretty neat structural game with certain titles that, on retrospect, should be obvious, but may well be missed because one would have to read the story, after all, to get the whole meaning.