Knock Knock!: The BIGGEST, Best Joke Book EVER (Highlights™ Laugh Attack! Joke Books)

Laugh Attack!: The BIGGEST, Best Joke Book EVER (Highlights Laugh Attack! Joke Books)

Who's There?: 501 Side-Splitting Knock-Knock Jokes from Highlights (Highlights Laugh Attack! Joke Books)

Jokes for Kids: The Best Jokes, Riddles, Tongue Twisters, Knock-Knock jokes, and One liners for kids: Kids Joke books ages 7-9 8-12

Lots of Knock-Knock Jokes for Kids

Knock Knock Who's There: My First Book Of Knock Knock Jokes

Scholastic Reader Level 1: Get the Giggles: A First Joke Book

Laugh It Up!: 401 Super-Silly Jokes, Riddles, and Cartoons from Highlights (Highlights Laugh Attack! Joke Books)

Silly Jokes for Silly Kids. Children's joke book age 5-12

The World's Greatest Knock-Knock Jokes for Kids