I meant to make this nonfiction anthology my in between book, but nearly every piece spoke to my soul and I finished it in a day. It's a thoughtful, diverse selection of what Tor.com has to offer, and since it's currently free you should absolutely nab it if you've any interest in SFF-focused literary criticism.
Special shout out to Brit Mandelo's 4-part essay on the Raven Cycle. It's one of the best things I've read this year, full stop.