Why is there no mistake in the phrase "first pancake coma"? Is "katavasia" connected with the cat Vasya? When are the "dog" days? Why not ask "who is extreme?" How to stop confusing the verbs "put on" and "dress"? You will find answers to these and many other difficult questions in this book. Especially for our readers, the author of the popular Instagram blog "Great Russian" ' great _ Russian Polina Masalygina revised and supplemented her best articles, in which she reveals the most unexpected tricks of our great Russian language.