Robin Dunbar is an evolutionary psychologist and former director of the Institute of Cognitive and Evolutionary Anthropology in the Department of Experimental Psychology at Oxford University. His acclaimed books include How Many Friends Does One Person Need? and Grooming, Gossip and the Evolution of Language, described by Malcolm Gladwell as "a marvellous work of popular science."
A fascinating study of friendship -- Rachel Cooke * Observer *
Friends offers poignant observations about how we have evolved to rely on one another for help and companionship - and how these bonds make our lives meaningful -- Clea Skopeliti * The i *