The Underpeople, by Cordwainer Smith (Pyramid, 1968). From Oxfam
Best Science Fiction Of The Year 5, edited by Terry Carr (Book
Ed Emshwiller’s amazing cover for the April 1960 issue of Galaxy.
science-et-fiction: Cordwainer Smith, Les Seigneurs de l’Instrumentalité,
The Best of Cordwainer Smith, edited by J.J. Pierce, Cover art