packed full of the most hilarious knock-knock jokes and side-splitting illustrations, for kids to enjoy and share. Part of the 'Buster Laugh-a-Lot' series, this hilarious book is filled with over 200 seriously silly knock-knock gags. A laugh-out-loud collection that will keep jokers entertained for hours on end. Designed to be easy to read, there are also hilarious illustrations for extra laughs.Knock, knock! Who's there?Etch.Etch who?Bless you!Knock, knock!Who's there?Cash.Cash who?No thanks, I prefer peanuts.Knock, knock!Who's there?Mikey.Mikey who?My key won't fit in the door. Let me in! Perfect for: - Budding comedians looking for new jokes to entertain family and friends