Introduction. The category of space in a literary text plays a significant role not only in the formation of narrative-compositional organization but in the accomplishment of the main heroes’ images as well. Genre specificity of a literary work shapes the way the author presents artistic space in the text format, so it explains the relevance of the chosen subject matter of the article. Materials and methods. The text of the novel “Flowers for Algernon” by D. Keyes is the material of the research, for the linguostylistic analysis of which the following general and specific scientific methods were applied: the analysis of special literature, generalization of the analyzed material, the deductive method of principles’ logical extrication, the method of linguistic abstraction, the contextual analysis method and the interpretative method. Purpose of the research is the deduction of compositional principles of artistic space organization in the novel as well as the analysis of linguostylistic means of their implementation. Research results, discussion. The article contains authentic definition of the term “literary text”; it dwells upon the artistic space agenda and its typology as well as its linguostylistic manifestation. In the process of the novel analysis a number of principles of artistic space formation with the help of narrative-compositional and linguostylistic means were summarized, among which there is the principle of “zero” space, space anthropocentricity, the principle of colour dichotomy, the principle of antithesis. Conclusion. The implementation of the suggested principles of artistic space organization in the novel testifies the consistency of the text building and the leading role of space category in the process of formation and impersonation of the protagonist’s image, taking in the account the increase of both compositional-stylistic demand and the amplification of the linguistic embodiment in the course of the protagonist’s intelligence growth.