The document discusses key concepts related to representing subjects in media including mediation, representation theory, stereotypes, and dominant ideology. It provides three levels of representation theory: reflective (mirroring reality), intentional (projecting a specific meaning), and constructionist (shaped by multiple influences). Any representation involves selection, organization and focus that changes reality. Stereotypes simplify complex subjects but can be dangerous if oversimplified. Dominant ideology reflects prevailing societal attitudes that representations tend to reinforce.