Dunno on the Moon. Anniversary Edition

Exactly 60 years ago, the novel that concludes the wonderful trilogy by Nikolai Nosov about the adventures of the little people in a fairytale world was published. Dunno, a friendly and cheerful hero in a blue hat, along with his... friends, set off for the stars!
«Dunno on the Moon» — a satirical novel-fable by writer Nikolai Nosov from the series about the adventures of Dunno with elements of science fiction. This is the third and final part of Nosov's trilogy of novels about Dunno.
Unlike the previous two books, in this one Nosov does not refer to the characters as «little ones» and «little girls», but only as «little people», and the appearance and behavior of most of the characters in the book are more characteristic of adults. Also, despite the title of the novel, Dunno is only one of the main characters.