To save his school library, Jamie Grimm teaches other kids how to tell jokes in a comedy class -- but it's tougher than he expects in this funny book for kids of all ages. Teaching other kids how to be funny is the toughest gig that Jamie Grimm has ever had, and with the highest stakes. If he fails, his school library will be shut down for good Even though he has a national contest trophy and a TV show under his belt, Jamie Grimm isn't one to sit...