Best of Mad Libs Activity Book by Roger Price & Leonard Stern. Ages 8 and up. Over the last 50 years, Price Stern Sloan has published hundreds and hundreds of Mad Libs stories. Come fill out over 125 of the funniest ones in this deluxe oversize edition. This book also includes a history of the game as told by the creator Leonard Stern (complete with pictures) and stories filled out by today’s hottest stars! It’s the super-silly way to say _________ [adjective] 50th Anniversary, Mad Libs!