Book excerpt: Bestselling author Bob Phillips (combined sales of more than 9 million copies!) shares more flat-out funny knock-knock jokes in this all new crazy collection of goofy guffaws and quirky quips. Kids will have a ball using these jokes to entertain friends and family. Parents can turn off the video on car trips as kids contribute to family conversation with a good clean helping of awesome knock-knock jokes. Whether they're on the playground, sitting on a long plane ride, or just bored on a rainy afternoon, kids can use these wacky wisecracks for all sorts of fun and laughter. Always good for a laugh, Bob Phillips' Flat-Out Awesome Knock-Knock Jokes for Kids is a fun book for the whole family.