In the world of cards, each one has a special job to do. Big Card keeps important papers in order. Tiny Card can be exchanged for a prize in an arcade. Round Card hangs out in a glamorous boutique. But is any card as lucky as Little Card? He's going to school to become a birthday card in other words, to sing, play games, eat cake, and be happy all day long. "But wait! "On the day he's supposed to take his talents into the world, Long Card tells him there's been a mix-up and they need to trade jobs. How can Little Card bring his exuberance into a library, a quiet place of books and rules and hushing? Offbeat and utterly endearing, this tale of a little guy who gives it all he s got is complete with a sweet twist and a surprise ending.