Irvine, Alex (2008), "Fables", in Dougall, Alastair, The Vertigo Encyclopedia, New York: Dorling Kindersley, pp. 72–81, ISBN 0-7566-4122-5, OCLC213309015
Irvine, Alex (2008), "Jack of Fables", in Dougall, Alastair, The Vertigo Encyclopedia, New York: Dorling Kindersley, pp. 100–101, ISBN 0-7566-4122-5, OCLC213309015