(Bakhtin, 1986): speech genres include both oral and written forms of language. Researchers have also shown that the rhetorical moves people must make within accepted genres to communicate successfully in particular contexts operate to reinforce communities' identities and to legitimate particular communication practices. Thus, the genres that communities enact help structure their members' ways of creating, interpreting, and using knowledge (Myers; Winsor, Ordering, Writing; Bazerman, Shaping, Constructing; Berkenkotter and Huckin; Smart). Genres are very important in our every day life and we do not realize how much we use them, how much they affect us, how much they determine the way we act and understand the others. Aspects of genre theory Rhetorical situation A rhetorical situation is a situation that has the potential for modification by the use of discourse. Bitzer states, "it is the situation which calls discourse into existence". Thus, the situation controls what type of rhetorical response takes place. Each situation has an appropriate response in which the rhetor can either fulfill or fail to fulfill.. He expresses the imperative nature of the situation in creating discourse, because discourse only comes into being as a response to a particular situation. Discourse varies depending upon the meaning-context that is created due to the situation, and because of this, it is "embedded in the situation". According to Bitzer, rhetorical situations come into existence, at which point, they can either mature and be resolved, or mature and persist. Bitzer describes rhetorical situations as containing three components: exigence, audience, and constraints. He highlights six characteristics needed from a rhetorical situation that are necessary to creating discourse. A situation calls a rhetor to create discourse, it invites a response to fit the situation, the response meets the necessary requirements of the situation, the exigence which creates the discourse is located in reality, rhetorical situations exhibit simple or complex structures, rhetorical situations after coming into creation either decline or persist. Bitzer's main argument is the concept that rhetoric is used to "effect valuable changes in reality" (Bitzer 14). In 1984, Carolyn R. Miller claimed that "situations are social constructs that are the result, not of 'perception, but of 'definition'". In other words, we essentially define as social recognitions. Although Bitzer never considers genre, Miller believes genres are created through social construction of perceived recurrence. Miller holds that, rhetorically, genre should be "centered not on the substance or the form of discourse but on