Asya Kazantseva is a famous scientific journalist, popularizer of science, laureate of the Enlightenment Prize (2014). Her third book is devoted to the structure and functioning of the brain, the connections between neurobiology and psychology, “a description of the various experiments, ancient and modern, which together form the idea that the brain is knowable.” The author, as always, refers to serious scientific sources and, in his signature style, tries to convey to a wide range of readers the main ideas: the brain is “our main working tool” - material, changeable and heterogeneous, “and awareness of these properties is useful in everyday life.” .