Here's why:
* Junie B.'s "big fat mouth" gets her into trouble: Throughout the story, Junie B. blurts out things she shouldn't, often leading to consequences. This highlights how careless speech can have negative impacts.
* The story explores the concept of lying: Junie B. tells a lie about losing her library book, and the story shows the guilt and stress that come with dishonesty.
* Learning to be honest: Junie B. eventually admits to her lie and faces the consequences, ultimately learning that being truthful is better in the long run.
The book teaches young readers that while it's okay to make mistakes, it's important to be truthful and take responsibility for our words and actions.