From New York Times bestselling author Mac Barnett and Geisel Award-winning illustrator Greg Pizzoli, an uproarious early reader series about a mischievous rabbit, a cranky old lady, and a lovable dog.

The Lady and Rex have a baseball game against the Big City Brats. Jack is not allowed to swing the bat, so he is told to be the Bat Boy. That is, until the Lady Town Ladies and the Big City Brats are tied. It's up to Jack to hit a home run, but on the way to home plate he spots some snacks . . .

Welcome to the laugh-out-loud and irreverent world of Jack, a new early reader series by the New York Times bestselling and award-winning team of Mac Barnett and Greg Pizzoli.