The article deals with the problem of variation of speech genres and blurring of their boundaries. The aim of the study is to determine the change of what parameters leads to the destruction of the annotation genre functioning in publishing discourse and what changes are acceptable and are a manifestation of intra-genre variation within one discourse. The study was based on 100 Russian publisherʼs abstracts of literary fiction and childrenʼs editions published in 2000–2024, collected by random sampling.