As you delve into the study of different human body systems, you can’t help but ask yourself: “So who is running all of this?” At first glance, everything seems obvious—the brain, the most complex organ in our body. But in reality, the brain controls the body through the nervous system, which runs through it with an entire network of connections and nodes. Renowned scientists Вячеслав Дубынин and Игорь Сергеев invite a young reader on an exciting journey through neural networks and brain regions to understand how our body’s key “control system” is structured and how it works. And again, two famous researchers help children reach out to the world of big science.