Audience profiles provide media producers with detailed demographic information about their target audiences. This allows them to tailor products and services to match audience interests. Some key ways audiences can be defined include by age, gender, socio-economic status, geographic location, and psychographic factors like values and attitudes. Magazines like Vogue and Chat have very different audience profiles - Vogue targets higher-income women in cities, while Chat readers are generally working-class women in rural areas. Understanding audience profiles is important for targeting advertising and content to increase sales and revenue.