Analysis of the workmanship Mediates the trend to congregate, classificamente, the literary compositions where the reality appears in one definitive way, through similar mechanisms of estruturao it appears with the more remote poetical manifestations. Thus, the history of the theory of the literary sorts in ocidente can be counted, from the greco-roman antiquity. The denomination of the literary sorts for the different groupings of the literary compositions is clearer if to remember that sort (of Latin the genus-eris) means birth time, origin, classroom, species, generation. what it is come close making through the times is filiar each literary composition to a classroom or species; or still it is to show as certain time of birth and certain origin generates a new literary modality. The characterization of the literary sorts taking for times normative or only descriptive feies, presenting themselves as inflexible rules or only as a set of traces which the workmanship can present in its totality or predominantly, it comes differentiating it each time. In defense of a universality of literature many theoreticians exactly arrive to consider the sort as invariant category and to value the workmanship for its obedience the fixed laws of estruturao, for its ' ' pureza' '.
While others, on behalf of the creative freedom of that the artistic work must result defend the mixture of the sorts looking for to show that each workmanship presents different combinations of characteristics of the diverse sorts. With the renascentista movement which defended the flag of the theoreticians of the greco-roman antiquity characterizes it critical renascentista for the reading of mimese aristotelian as imitation of the nature and not as a recriao process. Consequently, the theory of the sorts starts to consist as norms and rules to be followed rigidly so that more perfect it was to the imitation and more valued were to the workmanship. Considering that the old ones would have carried through the art of inigualvel form, century XVI takes as ideal models.