- Bernardo, Susan M.; Murphy, Graham J. (2006). Ursula K. Le Guin: A Critical Companion (1st ed.). Westport, Connecticut, United States: Greenwood Press. ISBN 978-0-313-33225-8.
- Cadden, Mike (2005). Ursula K. Le Guin Beyond Genre: Fiction for Children and Adults (1st ed.). New York: Routledge. ISBN 978-0-415-99527-6.
- Le Guin, Ursula K. (1993). The Language of the Night: Essays on Fantasy and Science Fiction (revised ed.). HarperPerennial. ISBN 978-0-06-092412-6.
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