Chicago, Shasta, 1952. First edition, first impression. Hardback. A very good copy. One of 5,000 copies, previously published in Astounding. Collects seven short stories, three grouped under the title 'The Story of the Machines', and two grouped under the title 'The Story of Aesir'. Includes an introduction from the author. A little edge wear, some bumping to the spine tips and a little toning. Cover art by Malcolm Smith [11136, Hyraxia Books].