Marina Koroleva's book "Purely in Russian" grew out of the famous programs "Speak Russian" and "How to," which could once be heard on the air of the legendary radio station "Echo of Moscow." Many texts were also published in the author's weekly columns in Rossiyskaya Gazeta. They talk about the most interesting, difficult and controversial aspects of the modern Russian language. The narrative form - light, emotional, immersive - makes these essays about language accessible to a variety of readers, from schoolchildren to ministers. The previous four editions have already become absolute bestsellers. In this publication there are many new materials that were published before only in the periodicals and in the author's social networks.