The textbook was prepared in accordance with the program of the course of the State Educational Standard of Higher Professional Education. Considered: language style, functional styles, speech culture and business etiquette. Particular attention is paid to the spoken language and the features of its competent use, methods of emotional coloring of the language, multi-valued and expressive vocabulary, features of its correct use, as well as compliance with language norms in a variety of speech styles. Examples of competent writing and speaking are given.