found: The starry wisdom, 1996:p. 4 (ill. by John Coulthart)
found: OCLC, 11 May 1999:(hdg.: Coulthart, John)
found: www.hairy1.demon.co.uk WWW Site, 5 Jan. 2003John Coulthart page (John Coulthart was born 1962, an illustrator of album covers for Hawkwind, and several magazines/comics. He is the artist behind the Lord Horror series of books)
found: Lovecraft, H. P. La llamada de Cthulhu, 2017:t.p. (illustrations, John Coulhart)
found: Wikipedia website, viewed Feb. 15, 2019(John Coulthart (born 15 March 1962 in England) is a British graphic artist, illustrator, author and designer who has produced book covers and illustrations, CD covers and posters. He is also the author of the Lovecraft-inspired book The Haunter of the Dark: And Other Grotesque Visions which contains a collaboration with Alan Moore entitled The Great Old Ones) - https://en.wikipedia.org/wiki/John_Coulthart
