Knock, Knock! Who's there? Groans and laughs aplenty in this jumbo joke book, packed to bursting with over 700 jokes for the whole family to enjoy. Including well-loved classics and brand-new comedy gold, this off-the-wall joke book will have readers rolling on the floor. In reading and telling the jokes, kids will pick up cultural references as well as improve their reading comprehension, verbal skills and social confidence! The doodle-style illustrations will also tickle readers' funny bones. This family-friendly joke book is a way to enjoy screen-free time. Perfect for readers aged 6+.