Studies on support, media and genres (MARCUSCHI, 2003;TÁVORA, 2012;BONINI, 2011) are developed for discursive domains in general, so that they can be operationalized and incorporated into the analysis, helping to understand the functioning of language. Often, in these domains, such as the journalistic one, there are differences in composition and textualization (FERREIRA, 2004), which, however, do not emphasize the genres present there, the reading of these genres or the notion of support. In the literary domain, specifically in the prosaic genres of fictional narrative, these concepts are problematized by and in literary creation. And they also make it necessary to discuss the concept of occupation of the support page, which goes beyond composition. For this article, we discuss the role of book support, in its constitutive aspects, in the creation of prosaic fictional genres, seeking to understand how this occupation is constituted. For this purpose, five fictional narratives were taken as corpus: S ( 2016), a novel by Abrams and Dorst; O Carteiro chegou (2007), of Ahlberg e Ahlberg; Diário de um ano ruim (2008), of Coetzee; O evangelho segundo Jesus Cristo (1991), of Saramago; and As Aventuras de Sherlock Holmes (2007), of Doyle. The results of the analysis point to different modes of interference in literary creation, being part of this creation, and in the reading process regarding decoding and fruition.