Perhaps the "Cliff's Notes" of classic science fiction, writer Sourdough Jackson's essays keep alive the books, authors, editors, publishers, magazines, and movies that made science fiction the successful subject and industry it is today. From the Communist front organization that spawned numerous SF greats, to who coined the term "sci-fi," Jackson's love and deep knowledge of SF is obvious in That Old Science Fiction, originally published as a monthly column in DASFAx, the newsletter of the Denver Area Science Fiction Association. That love is brought to you here, complete with a foreword by Robert Vardeman, author of The Cenotaph Road and dozens of other science fiction novels.