“I never think about genre when I work. I've written fantasy, science fiction, supernatural fiction, and am now working on a suspense novel. Genres are mostly useful as a marketing tool, and to help booksellers known where to shelve a book.”

Source: The Humans

"The Mustard magazine interview" (January 2005)
Context: Life isn’t divided into genres. It’s a horrifying, romantic, tragic, comical, science-fiction cowboy detective novel. You know, with a bit of pornography if you're lucky.

In a panel about his work in Comic Con 2010. Quoted in China Miéville Takes Comic Con http://www.tor.com/blogs/2010/08/china-mieville-takes-comic-con.

interview with 3am http://www.3ammagazine.com/litarchives/2003/feb/interview_china_mieville.html

Interview with Weird Tales (24 May 2007) http://weirdtales.net/wordpress/2007/05/24/george-rr-martin-on-magic-vs-science/
Context: I think that for science fiction, fantasy, and even horror to some extent, the differences are skin-deep. I know there are elements in the field, particularly in science fiction, who feel that the differences are very profound, but I do not agree with that analysis. I think for me it is a matter of the furnishings. An elf or an alien may in some ways fulfill the same function, as a literary trope. It’s almost a matter of flavor. The ice cream can be chocolate or it can be strawberry, but it’s still ice cream. The real difference, to my mind, is between romantic fiction, which all these genres are a part of, and mimetic fiction, or naturalistic fiction.

"A Conversation With Roger Zelazny" (8 April 1978), talking with Terry Dowling and Keith Curtis in Science Fiction Vol. 1, #2 (June 1978)

DC Comics interview http://www.dccomics.com/features/vertigox/vaughan.html

CinemaFantastique.net interview (October 2, 2008)