Books like Predictably Irrational and Sway have revolutionised the way people view human behaviour. Now Professor Clifford Nass has discovered a set of rules for effective human relationships, drawn from an unlikely source: his study of people's interactions with computers. Based on decades of research, Nass demonstrates that people treat computers and other devices like people, empathising with them, arguing with them and forming bonds with them. Nass's discoveries provide nothing less than a new blueprint for successful human relationships.