Knock! Knock!: The Best Knock! Knock! Jokes Ever

SideSplitters Knock! Knock! The Best Knock Knock Jokes Ever! by Tim Archbold contains more than 100 classic knock-knock jokes with humorous line illustrations.

"Knock Knock. Who's there? Aardvark.

Aardvark who? Aardvark a hundred miles just for one of your smiles."