Discourse analysis is a very useful technique in disciplines as diverse as anthropology, ethnography, sociology, social and cognitive psychology, stylistics, semiology and other disciplines within the humanities, the arts (poetry, rhetoric) and the social sciences that are interested in the study of the structures, functions and processing of text and speech. Discourse analysis is developed from a critical perspective, taking into account the approaches of authors such as Bajtin, Bourdieu, Foucault, Van Dijk, Verón, etc.
Currently, any type of discourse is analyzed, from the jargon of adolescents or underprivileged neighborhoods, to the technicalities of academics and specialists, everything can be analyzed, and any analysis is of social and cultural interest, in addition to the strictly linguistic. In any case, the stars of the "discourses" are the political discourse and the media discourse, which intertwine and shape what is usually called public opinion. Even the most stripped-down and critical discourse, even the most washed and neutral discourse, will always be plagued by stereotypes and stigmatizations.