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Friendship; The Evolution, Biology and Extraordinary Power of Life’s Fundamental Bond by Lydia Denworth (New York, W.W. Norton & Company 2020).
Why you should read it: If you geek out on how our brains work and the science behind why we have a fundamental need to connect, this is your book. Delivered with facts, studies and lots and lots of stories – Lydia’s writing style is soooooo much easier to read than the vast majority of the studies she cites.