num_pages: 20
description: Knock, knock.Who's there?Lettuce!Lettuce who?Lettuce in, it's cold out here!From the first knock-knock joke to the last,  Lettuce In!  provides the perfect introduction for young joke tellers. With whimsical animal characters and easy-to-follow jokes, this book also features a flap on every spread. The flaps reveal the surprise punch-line to each hilarious knock-knock joke!
language: English
title: Lettuce In!: And Other Knock-Knock Jokes
publisher: Little Simon