This article is dedicated to a comprehensive analysis of the theoretical foundations of the concept of authorial style. The study interprets authorial style as a complex aesthetic-linguistic phenomenon that forms at the intersection of linguistics, literary studies, and translation studies. The article systematically elucidates the historical development of the phenomenon of st yle, various theoretical approaches to it, and the primary components that serve to define authorial style. Specifically, the lexical, syntactic, rhythmic - intonational, and figurative -metaphorical layers of authorial style are analyzed based on scholarly s ources, and the significance of the concept of an idiostylistic dominant in expressing authorial individuality is revealed. In the course of the research, the national, cultural, and aesthetic features of authorial style are comparatively examined through examples from the works of English and Uzbek literary figures. The article also discusses the challenges of preserving authorial style in literary translation, including lexical neutralization, syntactic transformations, and problems of metaphorical equiva lence. The research employed methods from contrastive stylistics, translation stylistics, and corpus stylistics. The findings contribute to the comprehensive study of authorial style, deepen the stylistic analysis of literary texts, and provide a scholarly basis for understanding the challenges of preserving stylistic features in translation. Authorial style, idiostylistics, lexical stylistics, syntactic stylistics, imagery, stylistic dominant, comparative analysis, English language, Uzbek language, literary text.