Composed as a textbook set to teach the evolution of science fiction literature, the series is now available as mass market publications.
The six-volume set collects many of the most influential works of the genre.
It was published originally by Signet and then by White Wolf Games Studio.
Volumes 1 through 4 are currently being reprinted in paperback format by the company Scarecrow Press.
Published by Signet, 1979, reprinted by Scarecrow Press, September, 2002.