The hilarious #1 New York Times bestselling classic about a chimpanzee in a very bad mood—is perfect for young children learning how to deal with confusing fe

In this hilarious original board book for the littlest grumpy monkey, Jim learns that sometimes it's hard to get over a bad case of grumpiness, but having a goo

NEW YORK TIMES BESTSELLER • Jim Panzee, our favorite grumpy monkey, is feeling like quite the Scrooge this holiday season! It's Christmas time in the jungle,

Everyone's favorite New York Times bestselling Grumpy Monkey is back in this hilarious sequel about managing social anxiety and listening to your needs! Have yo

This early graphic novel chapter book based on the #1 New York Times bestselling Grumpy Monkey is perfect for children who love the original picture books and a