Oooh, look at this:
Full size here.
It’s pretty cool. But where are all the women? Where’s the feminist SF? I admit I’m extraordinarily bad at picking out details from this kind of dense information presentation, but on first pass some giants of the field I didn’t see: Charlotte Perkins Gilman, C. L. Moore, Joanna Russ, Marion Zimmer Bradley, Anne McCaffery, Vonda McIntyre, Suzy Charnas, Elizabeth Lynn, Gwyneth Jones.