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 . City of Illusions originally appeared as an independent paperback . It was reissued along with Rocannon 's World and Planet of Exile in a 1978 omnibus volume titled Three Hainish Novels , and again in 1996 with the same novels in Worlds of Exile and Illusion .