Shopping for a child who loves to read sounds easy. Just buy them a book, right? Then you walk into a bookstore and discover several thousand possibilities. Which one haven't they read? Which series do they already own? Are they still interested in dragons, or was that six months ago? Do they like fantasy or mysteries now? And how did a nine-year-old manage to accumulate more books than most adults? The wonderful thing about shopping for a reader is that you don't have to fin