3 books · Ages 4–9
Holiday Knock-Knock Jokes is a 3-book series for ages 4–9 by Katy Hall. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, Easter Crack-Ups: Knock-Knock Jokes Funny-Side Up and Olive You! And Other Valentine Knock-Knock Jokes You'll Adore are great first picks.
No particular order needed — browse and pick what catches your eye.