Saturday was Friends of the Palo Alto Library book sale day, which meant $15 spent for the following:

Cherryh, C. J. Chanur’s Homecoming. Phantasia Press, 1986. First edition hardcover (with a print run of 1,850). Replaces a DAW paperback copy. Third installment in Cherryh’s Chanur trilogy (and the fourth Chanur book overall). I’m now just missing Virtual Light for the full set of Cherryh Phantasia first editions, and as much as I like DAW’s old yellow paperback spines the hardbacks are very pretty.
Gruenwald, Mark, et al. Squadron Supreme. Marvel Comics, 1997. First edition trade paperback, collecting Squadron Supreme (1985) #1-12 and Captain America #314. Generally considered to be Mark Gruenwald’s masterpiece (although more people need to read his Quasar). One of Gruenwald’s last requests was to have his remains be part of a comic book; accordingly, after his untimely death at age 43 this collection was specially printed with ink containing his ashes.
Heinlein, Robert A. Job: A Comedy of Justice. Del Rey, 1984. First edition hardcover. Replaces a remainder-marked copy. Locus Award (fantasy novel); Hugo and Nebula finalist. Of every novel to ever make the final Hugo ballot, this might be the easiest first edition to obtain; I mostly grabbed this because I remembered that my current copy is remaindered. It’s surprisingly good for late-period Heinlein.
Polk, C. L. Witchmark. Tor.com, 2018. First edition trade paperback. Nebula nominee. First in a planned series. I think the visible spine stress is just a thing with copies of this book given the cover material and the 320 pages inside. Books are meant to be read.
Pringle, David. Science Fiction: The 100 Best Novels. Carroll & Graf, 1987. Trade paperback. A classic critical look at the field, contains a hundred short essays on science fiction novels published between 1949 (1984) and 1984 (Neuromancer).