Representation is how people, places, or objects are presented to an audience through a process of modification and mediation. Stereotypes are representations of people that simplify groups and become symbols over time, containing both negative and sometimes truthful understandings of social roles and status. Dominant ideologies in society, according to Marxist theory, serve the interests of ruling classes by influencing beliefs. Dyer proposed that media stars are constructed images made of various materials like advertising and magazines that shape their fictional personas. Gender representation theory holds that media is typically created from a heterosexual male gaze, and women are often depicted in stereotypical or objectified ways according to social norms and roles.