For the first time, the manual presents all sections of the theory and practice of the Documentary Linguistics training course, and provides practical recommendations. The manual is compiled taking into account the provisions and requirements of the current educational standard, unifying rules, modern official business and scientific and technical document communication. For students of higher and secondary specialized institutions studying the courses “Documentary Linguistics”, “Organizational Communication”, “Documentation of Management Activities” , as well as other disciplines related to the theory and practice of modern document communication and linguistics. The materials in the manual may be useful for practitioners who provide communicative and linguistic aspects of the activities of enterprises and organizations.