Theme development refers to the process of creating and expanding the central ideas or messages in a piece of literature, art, or any creative work. It involves identifying the main themes, such as love, conflict, or identity, and exploring how these themes are expressed through characters, plot, and setting. In literature, theme development can enhance the reader's understanding and emotional connection to the story. Writers often use symbols, motifs, and character arcs to reinforce their themes, allowing audiences to engage with deeper meanings and reflections on human experience.