What author is well known for writing speculative fiction and featured cover art by her brother on one of her books?
C. J. Cherryh Carolyn Janice Cherry (born September 1, 1942), better known by the pen name C. J. Cherryh, is an American writer of speculative fiction. She has written more than 60 books since the mid-1970s, including the Hugo Award-winning novels "Downbelow Station" (1981) and "Cyteen" (1988), both set in her Alliance-Union universe. She is known for "world building," depicting fictional realms with great realism supported by vast research in history, language, psychology, and archeology. Her series of fantasy novels set in the Alliance-Union universe, the Morgaine Stories, have sold in excess of 3 million copies.
Leo and Diane Dillon Leo Dillon (March 2, 1933 – May 26, 2012) and Diane Dillon ("née" Sorber; born March 13, 1933) were American illustrators of children's books and adult paperback book and magazine covers. One obituary of Leo called the work of the husband-and-wife team "a seamless amalgam of both their hands". In more than 50 years they created more than 100 speculative fiction book and magazine covers together as well as much interior artwork. Essentially all of their work in that field was joint.