Chapters in books are sections that divide the content into manageable parts. Each chapter typically focuses on a specific theme, event, or character development, making it easier for readers to follow the story or argument. Chapters often have titles or numbers, helping readers navigate through the book. Authors use chapters to create a natural flow in the narrative or exposition. This structure allows readers to pause and reflect on what they have read before moving on. In many cases, chapters can vary in length, depending on the author's style and the book's overall design.