Book excerpt: Intelligence, motivation, personality, learning, stimulation, behaviour and attitude are just some of the categories that map the terrain of `psychological reality'. These are the concepts which, among others, underpin theoretical and empirical work in modern psychology - and yet these concepts have only recently taken on their contemporary meanings. This fascinating work is a persuasive explanation of how modern psychology found its language. Kurt Danziger develops an account that goes beyond the taken-for-granted quality of psychological discourse to offer a profound and broad-ranging analysis of the recent evolution of the concepts and categories on which it depends. Danziger explores this process and shows how its conse