Richard Dyer argued that stereotypes narrow down groups to a few exaggerated characteristics that are then displayed in media. Stereotypes are about power and tend to stereotype groups without power more, such as gay men, non-white races, women, and the working class. Later theorists noted that stereotypes can act as media shorthand for quick audience recognition but also oversimplify groups and are more common in genres like advertising. Perkins argued that stereotypes are not always negative and contain elements of truth but media exaggeration of minority stereotypes is problematic.