A frame narrative is a literary technique where a story is enclosed in another story or framework. This structure typically involves a narrator who tells the main story and another narrator who tells the framing story. The purpose of a frame narrative is to provide context or perspective for the main story or to create a sense of depth and complexity by introducing multiple layers of storytelling. Some famous examples of frame narratives in the literature include “The Canterbury Tales” by Geoffrey Chaucer and “Frankenstein” by Mary Shelley.