This document discusses audience investigation. It defines audience as spectators or listeners at public events, or those likely to give attention to something. It discusses Stuart Hall's encoding/decoding theory of preferred, negotiated, and oppositional readings by audiences. It also discusses Denis McQuail's uses and gratification theory that audiences consume media for surveillance, identity, relationships, or escapism. Finally, it notes Ien Ang's view that audiences are becoming more multifaceted and diverse in their media experiences.