The Hidden Life of Trees by Peter Wohlleben. An interesting book with new discoveries about trees, such as how some trees communicate via biochemical signals. A very good translation from the German.
Lab Girl by Hope Jahren. An unusual memoir by a woman who does interesting botanical research, though the most memorable parts concern her unusual research partner, Bill.
The Undoing Project by Michael Lewis. Somewhat different from Lewis' other books. Interesting but I felt it could have been shorter and still told the story as effectively.
Glass Houses by Louise Penny. The latest and one of her best, and that's saying something. Read them in order, however, if you haven't read any of her Inspector Gamache books yet, all set in Quebec.
A Dangerous Place by Jacqueline Winspear. Another good one in the Maisie Dobbs series. This one set in Gibraltar during the Spanish civil war. Once again, reading them in order is best.
The Templars Last Secret by Martin Walker. The latest in the excellent Bruno Courrèges series set in SW France. Walker captures the Dordogne valley so well.
Anything is Possible by Elizabeth Strout. An engaging collection of stories which together comprise a novel. Great writing, as always.