The document discusses the importance of defining and researching audiences for creative media projects. It covers quantitative audience research, which determines the size of potential audiences, and qualitative research, which provides a deeper understanding of audiences through methods like interviews and focus groups. It also discusses profiling audiences through socioeconomic status, psychographics, geodemographics, age, gender, whether they fall into the mainstream or niche categories. Understanding audience demographics and characteristics is crucial for targeting advertising and content appropriately.