Media language conveys meaning through signs and symbols that are suggested by how a scene is filmed. Media literacy is the ability to understand, analyze, and create various media forms. An ideology represents a society's shared beliefs and values, and the media is effective at spreading ideologies since it reaches large audiences. Film genres are categories based on similarities in emotion or narrative elements that are borrowed from literature. Target audiences are specific consumer groups that a message is aimed at within the predetermined market. Narrative explores how different media tell stories through conventions that depend on the medium and purpose, such as the condensing of time through techniques like camera fades in film.