The object of research of this article is a novel by Mark Z. Danilevsky's "House of Leaves" in the context of postmodernism. The subject of the research is some concepts of the theory of poststructuralism – discourse, genealogy, "death of the author" – implemented in the work "House of Leaves" through reductive, metaphorical or allusive implantation into the fabric of the novel. A general analysis is given and the problem of the correlation between the theories of poststructuralism and postmodernism is outlined. The selection and analysis of theoretical works on a given problem has been carried out, and working concepts have been formulated, used as tools for analyzing forms, figures of poetics, as well as for interpreting the novel "House of Leaves".As a consequence, the article presents a detailed description of one of the sides of the artistic method of Mark Z. Danilevsky (the use of poststructuralism theories as a figure of novel poetics), which allows us to judge the techniques and means of artistic expression that determined the form of the novel. In this regard, the article discusses the so-called "form effects", for example: synchrony, the capture of a real figure by a simulacrum, the creation of genealogical–artistic images, the establishment of a special time mode – "simultaneity", etc. The novelty of the research lies in the fact that we have considered the interpretation of the work from the point of view of poststructuralism theories, as a result of which new formal techniques and mechanisms of their use in the creation of a work of art have been revealed.