The series of books "Children know everything in the world" contains amazing stories about animals, space, natural phenomena, wonders of technology and much more. This is practically fiction: there are no annoying definitions, callous facts and everything that is characteristic of the encyclopedia and educational literature. But this does not mean that after reading the book, the child will not acquire any knowledge. Rather, on the contrary, it is this presentation of material that will allow not only to gain new knowledge, but also to arouse genuine interest in the issue under study.