My pick is David Levithan's A Lover's Dictionary. It's the story of a relationship told as a non-linear series of moments; a word and then the relationship as it pertains to that word. Some entries are only are only a few lines, and I don't remember any as being longer than a page or two. It is lovely - the kind of short book you read in a single sitting, the kind which leaves you with the sense of a story you can't quite grasp rather than one which tells you what happened.
