Willy dreams of being a movie star, a singer, a sumo wrestler, an artist, a giant, and other exciting figures.

Thirteen-year-old Joey Willis, deaf since the age of six, is used to being left out of conversations because her mother never allowed her to learn sign language. Everything changes when Joey meets Dr. Charles Mansell and his baby chimpanzee, Sukari, but as Joey's world blooms with possibilities, the everything changes again.

Bobo the chimp seeks hugs among various jungle animals and their young, but he does not get what he wants until he is reunited with his own parent.

Jim Panzee wakes up in a bad mood one beautiful day, but he keeps denying he is grumpy even as his friends give advice for feeling better.

Luc is an orphan, living in debt slavery in Gabon, until he meets a Professor who claims to be studying chimpanzees, and they head off into the jungle--but when the Professor disappears, Luc has to fend for himself and join forces with the chimps to save their forest.

Benjamin's behavior is so often bad that his teacher does not even notice when a chimpanzee takes his place during a field trip.

Not very good at sports or fighting, mild-mannered Willy nevertheless proves he's the champ when the local bully shows up.

"Have you ever been a little anxious about going to a party? Jim Panzee feels that. Porcupine is having a big party, and according to Jim's best friend Norman, there will be--gulp--dancing. Jim can DEFINITELY not dance. When he tells his friends, they all try to teach him cool moves--surely that's the only reason Jim isn't excited about this party! In this hilarious sequel to GRUMPY MONKEY, kids will learn that it's okay not to go with the flow if...

At first Jim is impressed with Norman's new pet bugs, but he quickly becomes jealous of all the time Norman spends with them and when the bugs have babies, Jim declares Norman has too many pets.

A young chimp declares a love for all kinds of books, from funny books and scary books to song books and strange books.