The textbook gives an idea of the complex structure of the national Russian language, tells in detail about the non-literary variants of the national language and about the literary language as its model version, gives the concept of the language norm. Designed for cadets and students of all specialties , Russian Language and Culture of Speech , Students , "Sociolinguistics" , as well as students in the specialty "Translator in the field of professional communication" and studying the discipline "Style of the Russian language and culture of speech" . The purpose of this tutorial is to give an idea of the national Russian language, its diversity and heterogeneity ; to talk about non-literary variants of the language - territorial dialects, urban vernacular, professional and social-group jargon, about literary language as the highest form of existence of the national language: to show its advantages over non-literary variants The manual is designed to teach students to correctly use the huge potential of the Russian language , be able to select language material according to a specific speech situation, Thus, do not clog your speech with various non-literary elements (for example,, jargon, Rough , In other words, , vulgarisms, Not only does it harm people, but it also harms people. And they use them. They can also hurt other people....