Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Borrow a friend's copy

Good for a couple of laughs but essentially one funny idea stretched into a hardcover. Something to page through on a plane, in the bathroom , or while waiting for the dentist but not much substance. Better yet - pick it up at your local bookstore read it over a latte and return it to the shelf 20 minutes later and you'll have the idea.