Incoming Resources
- Knock-knock jokes for kids, Rob Elliott
- What do you hear when cows sing?, and other silly riddles, by Marco and Giulio Maestro ; pictures by Giulio Maestro
- Goofy knock-knocks, Terry Pierce ; illustration, Debra Dixon
- Why did the chicken cross the road?, and other riddles, old and new, compiled by Joanna Cole and Stephanie Calmenson ; illustrated by Alan Tiegreen
- Laugh-out-loud A+ jokes for kids, Rob Elliott
- The silly little book of animal jokes
- Knock-knock book, for kids by kids, Meg Cadts