"Language circle" is the most famous work of the famous Russian linguist Lev Shcherbytsky. In this book, the author examines the influence of language on the formation of a person's worldview, highlights the issues of language processes and national self-awareness. Shcherbytsky considers language as an integral part of culture, which affects all spheres of society. The author systematizes the theory of language, highlights its role in the formation of national and sociocultural identities. "Language circle" is not only a linguistic work, it is a fundamental work that is still relevant for everyone who is interested in language, culture and society.