The document discusses audience research and targeting audiences for media products. It defines primary and secondary research methods. It also discusses theories of how to identify and group target audiences, including by social factors, media habits, motivations and how different groups may respond to different message strategies. Key aspects covered include Burton's social and media audience groupings, Hartley's seven subjective categories to further define audiences, Dyer's theory of offering solutions to inadequacies, and how motives and delivery methods should be tailored to different audience groups.