City of Illusions is a 1967 science fiction book that was written by Ursula K. Le Guin in her Hainish Cycle. "City of Illusions" was republished in 1978 with "Rocannon's World" and "Planet of Exile" in a set called "Three Hainish Novels" and in 1994 with the same books in "Worlds of Exile and Illusion".