Here's a breakdown:
* Fan fiction is a work of creative writing based on an existing work of fiction, like a book, movie, TV show, or video game. It uses characters, settings, and themes from the original work to tell a new story.
* Non-fan fiction is everything else. It includes:
* Original fiction: Stories that are entirely created by the author.
* Speculative fiction: Stories that explore alternative realities, like fantasy, science fiction, and horror.
* Historical fiction: Stories set in the past, often based on real historical events or figures.
* Literary fiction: Stories focused on exploring complex themes and human experiences.
* Genre fiction: Stories that fit into specific genres, like romance, mystery, thriller, and more.
Essentially, non-fan fiction is any fiction that is not a derivative work of another pre-existing fictional piece. It's original content created from scratch.