Pictures of worlds that are in some ways similar to the familiar, our world, and in some ways different from it, fantasies on the theme of parallel history, stories about unusual human abilities that can arise in the process of his evolution - all this is there in the collection. The rich fiction, authorship and humanistic orientation of the works will certainly attract the sympathy of a wide range of readers to the collection. Compilation, introductory article by V. Kahn.