First Topias Posting

I'm looking forward to reading in the science fiction genre this semester. Thus far, the only sf novels I've ever read have been Black No More by George Schuyler and Stars in My Pocket Like Grains of Sand by Sam Delaney. This I owe to my background in Af Am lit, of course. (Though I've never read Octavia Butler, believe it or not.) I'm very interested in the notion of Topias as a concept and am especially intrigued by the feminist focus on theory. As far as topics and inventions go, I'm curious about it's relationship to base and super structure and hope the readings on Jameson could help shed some light on that for me.