You have a unique addition to the Russian language textbooks for grades 5-9. In total, 160 pages of accessible language set out the rules and exclusions that take place at school. Tables, diagrams, algorithms will help both schoolchildren and students quickly understand, remember or restore the desired rule in memory. In the reference section you will find the basic concepts and terms of the school course of the Russian language, which makes the reference book indispensable in preparation for the exam and tests. The book's material is divided into parts, each corresponding to a class, so that rules or terms can be easily found.