Fiction novels are books about stories that did not happen in our world. Fiction books are stories that aren't real, but they can be based on real situations, people, and events. There are many different genres of fiction, including romance, mystery, horror, humor, and fantasy fiction books, allowing you to choose your adventure and enter a whole new world. There are also three different types of fiction books, such as literary fiction, genre fiction, and mainstream fiction. These refer to the style of the writing and the primary reader audience.