The document discusses audience theory, which includes studying how audiences are constructed, how they view and interpret media texts, their motivations for consuming media, and the effects media has on audiences. It examines factors like demographics that media producers consider when targeting audiences. Theories discussed include uses and gratification theory, Stuart Hall's encoding/decoding model of communication, and David Morley's study of how audiences can have dominant, negotiated, or oppositional readings of media texts based on their own experiences.