This document provides an overview of the horror genre for a synoptic research assignment. It traces the origins of horror in literature back to the late 1700s and discusses some of the earliest horror films from the late 1800s/early 1900s. It then analyzes trends in the horror genre through different eras, from the silent film era to psychological horror in the 1960s. The document also includes tables listing conventions of classic horror films and examples of contemporary horror films with their ratings and subgenres.