Get ready for endless laughter with Knock Knock!: The BIGGEST, Best Joke Book Ever. This book is perfect for kids and adults alike who love humor and jokes. The book features 352 pages of hilarious content, including the Highlights Laugh Attack! Joke Bks. series.The trade paperback format is easy to carry and read, with a length of 8.2 inches, height of 1 inch, and width of 5.5 inches. The book is illustrated by a talented artist and written by the renowned Highlights brand. The genre is juvenile nonfiction, with topics covering humor, jokes and riddles, and games and activities. This book is a must-have for anyone who loves to laugh and wants to share the fun with others.