The Invisible Friend Who Loved Jokes follows the adventures of Jack and his invisible friend, Giggles, who is always playing pranks, telling jokes, and making funny sounds. Giggles' love for laughter brings fun and chaos into Jack's life, but no one believes that Giggles is the one behind all the mischief. Instead, Jack's family thinks he's the source of all the jokes, leaving him feeling misunderstood. Throughout the book, Jack and Giggles create silly and laugh-filled moments that bring joy to those around them. From spaghetti spills to mismatched shoes, Jack's attempts to explain Giggles' pranks only lead to more hilariously confusing moments.