Inspired by @partnershipinv's book recommendations, I thought it might be an interesting idea to start a general thread of the best books folks read (or listened to) in 2021. No limits, but try to keep it to your absolute top picks, and try to keep it related to finance somehow, even if tenuously. These do not have to be published in 2021, just read last year. Include title, author, and interesting tidbits, if you like.