The enterprising Sytin borrowed the idea of ​ ​ an encyclopedia for children from the British, who were the first to offer the young reader a solid, solid, but at the same time accessible and fascinating reference publication. All articles were divided into ten main sections: 1. Universe. 2. From the history of the Earth. 3.0 substance. 4. About life. 5. Wildlife. 6. Countries and peoples. 7. Great people. 8. What surrounds us. 9. Why it happens. 10. What and how to occupy yourself.