#31 Slavers of Space by John Brunner. Copyright © 1960 Ace Books. Cover by Emsh (Ed Emshwiller).
"There were robots and there were androids. A man of quality and wealth like Derry Horn could have either for the purchasing. The robots were fine, if you like a machine that could talk and do your bidding exactly. But in some ways the androids were even better." - Publisher's blurb