Narrative structures refer to the organized framework that shapes a story. They guide how events unfold, helping to create a coherent and engaging plot. Common structures include the three-act structure, which divides a story into setup, confrontation, and resolution, and the hero's journey, which outlines a protagonist's adventure and transformation. These structures help writers convey themes and emotions effectively. By following a specific narrative structure, authors can maintain audience interest and ensure that the story flows logically. Understanding these frameworks is essential for both writers and readers to appreciate the storytelling process.