Bob Phillips 
Best Ever Knock-Knock Jokes for Kids 

Bestselling author Bob Phillips (combined sales of more than 9 million copies!) has done it again. This crazy collection of knock-knock jokes will keep kids, their friends, and their parentsthe whole neighborhoodchuckling for a long time to come.Filled to the brim with hilarity and just plain silliness, this is a book every kid will want and every parent will enjoy. Laughter is only a knock-knock joke away!