What is the authors purpose of diary of a wimpy kid hard luck?

In "Diary of a Wimpy Kid: Hard Luck," the author, Jeff Kinney, aims to explore themes of friendship, self-discovery, and the challenges of adolescence through the humorous lens of middle school life. The story follows Greg Heffley as he navigates the ups and downs of changing friendships and personal growth, offering relatable experiences for young readers. Kinney's purpose is to entertain while also imparting valuable lessons about resilience and the importance of being true to oneself.