A anthology of eleven science fiction short stories, selected and introduced by Isaac Asimov. The book is published under the Dragon Books imprint which was a children's books publisher. The book is marked with a 'red' dragon - which categorises it as a book for 8 year olds and above.
I was definitely over 8 when I read the book, heck it wasn't published until I was 16, and while not the most earth shattering collection of science fiction in the world ever by a long shot, the collection comprises a good selection of well told stories for children.