Prog inspired by Books and Stories

Both those books mentioned above have both been made into movies too. The Snow Goose in 1971 with Richard Harris and Jenny Agutter. Damnation Alley in 1977 with Jan-Michael Vincent and George Peppard.

Oddly I've read both the books and seen both movies before. I'm sure there must be others.

And Iron Maiden. 

Hawkwind take a lot of inspiration from SF and fantasy books. "High Rise" is based on the novel of the same name by J. G. Ballard, "Steppenwolf" is based on the novel of the same name by Nobel laureate Hermann Hesse, "Robot" is based on the robot stories by Isaac Asimov, "The Chronicle of the Blacksword" is based on the series of books about the albino King Elric of Melniboné by Michael Moorcock, "Fahrenheit 451" is based on the famous SF novel by Ray Bradbury, "Infinity" is based on the story of Merlin and Viviane, and that's just naming a few.

The spoken words at the end of "Choose your Masque" ("I have come, but I do not choose now to do what I came to do") are the words Frodo speaks in "Lord of the Rings" at the moment when he is supposed to throw the ring into the crater of Mount Doom.

Speaking of "Lord of the Rings" the famous album by Bo Hansson has to be mentioned of course. He also made an album based on the novel "Watership Down" by Richard Adams.

Tangerine Dream made an album based on the novel "Der Engel vom westlichen Fenster" by Gustav Meyrink (who is most famous for his novel "Der Golem"). They translate the title as "The Angel from the West Window"; the title of the English translation of the book by Mike Mitchell is "The Angel of the West Window". They also made the album "The Castle" based on Franz Kafka's novel "Das Schloss" ("The Castle" is the English title of the novel).

"Gormenghast" by Fruupp is based on the fantasy trilogy of the same name by Mervyn Peake.

I actually read all these books, by the way, but not because of the songs.