Joke-tionary Jokes will have your children giggling as they read and share hundreds of good, clean, and hilarious jokes.Get ready for some funny family time! Your children will want to share with friends and family the jokes they find in Joke-tionary. Chock-full of more than 444 jokes accompanied by humorous illustrations, this book will help your kids grow their confidence as they tell jokes to friends and family. Each title in the Knock-Knock Rocks series includes a special knock-knock section. From silly puns to knock-knock jokes, the fun doesn't end!