If you'd asked yesterday, I would have said Jirel of Joiry, a collection of sword & sorcery stories that were originally published in Weird Tales in the 1930s alongside Conan the Barbarian - the point of interest being that these are written by a female author and the tough warrior protagonist is also female. I gave up on it yesterday after reading the first three stories and deciding I wasn't getting anything out of them: the protagonist has some imaginatively weird adventures but we barely get to know anything about her as a person so I never felt like there were meaningful stakes.

I'm still working through A Choice of Catastrophes. I've been increasingly encountering reminders that the book is fifty years old: the section on asteroid impacts doesn't say a word about the dinosaur-killer asteroid, for instance, because that wasn't in the conversation yet in 1979. I've just started the section on ice ages, and it'll be interesting to see if 1979 Asimov has anything to say about anthropogenic climate change.