Michael Parr 
Knock Knock Jokes [EPUB ebook] 
The best book of knock knock jokes for kids

KNOCK KNOCK JOKES
Knock knock.
Who’s there?
Cow says.
Cow says who?
Nooooo, a cow says moo!
This book contains hundreds of the best, funniest, and silliest knock knock jokes you’ll ever come across!
Have hours of fun and entertainment sharing these silly jokes with your friends and family with this book today!