Fiction, Science -- See Science fiction Use for works of fantasy that deal with possible though not necessarily probable events and are based approximately on scientific principles, e.g. space travel, time travel, etc. Use also for works in which mankind confronts alien cultures or environments. For works that deal with non-existent, incredible, or unreal worlds, characters, and physical principles, use Fantasy fiction.
Fictional journals -- See Diary fiction Here are entered works of fiction written in diary form. Works of fiction written wholly or partially in the form of letters, telegrams, electronic mail messages, instant messages, etc. are entered under Epistolary fiction.
Fictionalized documentary television programs -- See Documentary-style television programs This heading is used as a genre/form heading for fictional television programs made to resemble documentary television programs.
Fictitious characters -- See Also Superheroes Here are entered works about fictional heroes who possess abilities beyond those of normal human beings. Works about real people who are admired for their achievements, courage, or noble qualities are entered under Heroes.