This document summarizes several sub-genres of horror films, including action horror, body horror, comedy horror, gothic horror, psychological horror, science fiction horror, slasher films, and zombie films. It provides examples and key defining elements for each sub-genre. Action horror blends action and the supernatural, body horror deals with the deconstruction of the human body, and comedy horror combines comedy and horror elements. Gothic horror features castles and ruins, while psychological horror relies on a character's fears and instability. Science fiction horror deals with technology and experiments gone wrong, slasher films feature a serial killer, and zombie films portray the undead feeding on the living.