Did you know that laughing can have a positive physical and mental effects on the body! Laughter can lower blood pressure, lighten tense situations, and help you bond with friends and family. Jokes, humor, and comedy come in many forms. Whether it is a few funny jokes, a silly joke book, or a funny movie, we can all benefit from the positive effects of comedy and humor! You'll love this hilarious joke book. Are you looking for funny and hilarious knock knock jokes for kids? With this MASSIVE collection of funny knock knock jokes you can make everyone laugh! This book full of funny knock knock jokes is perfect for any occasion. You and your friends will laugh for hours at this funny joke book. Knock knock! Who's there? Etch! Etch who? Bless you! HAHA! Doris! Doris who? Doris locked. Open up! LOL! Jamaica! Jamaica who? Jamaica me crazy! Tank! Tank who? You are welcome! The LOL Funny Jokes Club is dedicated to comedy. We'll tickle your funny bone with our side-splitting jokes and humor. Whether it's funny and hilarious one-liners, dirty adult jokes, or laugh-out-loud rib tickling knee slappers, the LOL Funny Jokes Club does it all! Laugh until it hurts!