The document discusses the evolution and conventions of the horror genre. It begins with the origins of Gothic horror literature in the 1600s and covers major developments like the Universal Monsters films of the 1930s, Hammer Horror films of the 1950s-1970s, and slasher films of the 1970s-1980s like Halloween, Friday the 13th, and A Nightmare on Elm Street. It outlines common conventions for different subgenres and provides summaries of influential films like Psycho, The Texas Chain Saw Massacre, and Scream. The document concludes by noting the popularity of "found footage" and psychological horror films in modern cinema.