The clearest example of metafiction is the story. A story with footnotes that comment on the author's process.
Many resources can be employed to make use of metafiction (a narrative technique in which the author constantly reminds the reader that he or she is reading a fictional work), and some of them include:
In this way the reader is engaged and becomes a participant in the story, forcing himself to think about the nature of the narration and how much credibility exists in the stories he/she reads.