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The Elephant in the Brain: Hidden Motives in Everyday Life

Religion for Atheists: A Non-believer's Guide to the Uses of Religion (Vintage International)
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The WEIRDest People in the World: How the West Became Psychologically Peculiar and Particularly Prosperous
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The Elephant constantly looks to the herd for cues about how to behave.
Dan Heath • Switch: How to Change Things When Change Is Hard

Economist Robin Hanson, co-author of the Elephant in the Brain, estimates that as much as 80 per cent of human behaviour boils down to signalling.