The novellas “The Fifth Head of Cerberus” and “Forlesen” can both be read in The Best of Gene Wolfe”. All the stories in that collection are bangers but I could compile a second collection of Wolfe stories that are just as as good. So it’s really Some of the Best.
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I would also say that if you are taking off from this story, The Fifth Head of Cerberus is very relevant
(in general The Best of Gene Wolfe collection has a lot of the good starting points IMO)