What queer #SFF published between 1980-2020 is essential to you? (I'm being strict about the date range here, I feel like more recent titles and earlier New Wave ones are both better-known!)
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3 body problem by Liu Cixin— 2008/2015
On A Sunbeam by Tillie Walden 2016-2017
Technically the entirety of Discworld is within that date range (1983-2015) but if we’re going for essential I’d probably pick out Small Gods or the Death novels (starting with Mort)
Sam Starbuck’s Six Harvests in Lea, Texas just squeaks in with a publication date of March 2020
