KnockKnock is the world's oldest joke and yet has never gotten old! (It just feels it.)Invented by William Shakespeare in 166, (appearing in his famed tragedy, Macbeth; bet you never knew that) the humble KnockKnock joke has made eyes roll, noses snort and mouths chuckle for centuries. Since the Bard's drunken Beelzebub bit the longsuffering gag became a global 'punomenon' (in 1936) before settling today as the world's best kids (and Dads) joke format that encourages giggles and grimaces in equal measure... with endless punning potential.The latest kid on the block in Welbeck's bigselling Small and Mighty gift series, compiled by (selfproclaimed) 'World's funniest joke compiler', Malcolm Croft, The Small and Mighty Book of Knock Knock Jokes is a tiny bundle of joy that includes all the classic and vintage KnockKnock jokes, as well as all the modern, twentyfirst century ones too. And because the jokes are all clean and familyfriendly, you can share them with kids of all ages without wor