https://www.tor.com/2014/01/21/post-binary-gender-in-sf-introduction/

In this short essay, Alex Dally MacFarlane discusses post-binary gender in SF. While she does critique The Left Hand of Darkness, I really agree with her argument. A book published in 1968 should not still be the revolutionary, quintessential example of post-binary SF, especially with LHOD written that way it is (not exactly highlighting non-binary characters). I think LHOD was incredibly important for its time and for today, but to me it was not revolutionary when I read it. As a liberal person in the 21st century, the idea of a non-binary race was not groundbreaking. Yes, for some readers it still is and always will be, but why can’t we move past LHOD and highlight other post-binary SF texts? We do have to do some digging for this and it is our responsibility to bring those texts to the forefront. I’m excited to see what I find.