Question: Are Robin McKinley and Primo Levi both authors ? 
Sentence (from "Primo Levi"): His best-known works include "If This Is a Man" (1947) (U.S.: "Survival in Auschwitz"), his account of the year he spent as a prisoner in the Auschwitz concentration camp in Nazi-occupied Poland; and his unique work, "The Periodic Table" (1975), linked to qualities of the elements, which the Royal Institution of Great Britain named the best science book ever written.
Relevant evidence: No