It's not been a great year for new reading but I enjoyed Such A Fun Age. I read a bunch of fantasy books, a genre I've not really got into before. In crime, I think Jane Casey's Maeve Kerrigan books get better and better. I did read a fair number of pretty disposable novels, none of which I can recommend, just to distract from the general awfulness of 2020, and I completely failed to read The Mirror and the Light, despite having loved the previous two, but I'm hoping to give that a go over Christmas.
This was the year I borrowed far more library books than I actually read, just because I found concentrating so hard. (Last year I thought Station Eleven, The Silence of the Girls and Fleishman is in Trouble were all brilliant.) I comfort re-read most of Mary Stewart's romantic thrillers and Lois McMaster Bujold's Vorkosigan novels.
In non-fiction, Prairie Fires, about the life of Laura Ingalls Wilder, was absolutely fascinating, as was Lady in Waiting, in a completely different way.
My top read of the year has been Troubled Blood, in preparation for which I read all the previous Galbraiths, and I love them even more now. But Troubled Blood is the best yet.