Fictional devices are techniques used by writers to create and enhance storytelling. These devices include elements like metaphor, foreshadowing, and flashback, which help convey deeper meanings and emotions. They can also involve character types, such as archetypes, that represent universal themes and traits, making stories relatable to readers. Additionally, fictional devices can include narrative structures, like non-linear storytelling, which disrupts chronological order to create suspense or reveal character backstories. By employing these devices, authors can engage readers more effectively, allowing them to connect with the story on multiple levels and explore complex ideas within a fictional context.