This document discusses key concepts relating to audiences for media products. It defines audiences based on demographics like age and income, as well as psychographics like values and behaviors. It also summarizes several theories of how audiences interpret and interact with media texts, including Stuart Hall's encoding/decoding model, uses and gratifications theory, and the hypodermic syringe model which suggests passive acceptance of messages by audiences. The document explores how these theories can be applied to understand audiences of the horror genre.