Before I got into popular science books I was a big fan of the really impressive business book - something like, for instance, Maverick , Ricardo Semler's astonishing account of transforming a family business. Now mostly a reader of popular science, I find most business books facile and full of padding - so it was refreshing to read this business-popular science crossover on the nature of our 'tribal' cultural instincts - primarily relating to peers, heroes and ancestors in the broadest sense and how these influence our interactions. Although in some ways I'd dispute Michael Morris's approach in putting tribalism central - I personally am more inclined to see the way we tell each other stories as central to what he describes, with tribalism just as symptom of that - it is still an engaging hypothesis. Morris gives us plenty of examples from around the world of the benefits that these instincts have brought over the millennia. Perhaps particularly interesting at a ti...