This book argues that knowledge is now central to the modern economy and its productive processes. It is also essential for social relations, social cohesion and conflict resolution. We have moved from a society based around heavy commodities to symbolic goods, from situated markets to non-place-specific locations, from machines to software and from things to ideas. These changes produce new forms of social interaction and new perspectives on identity, practice and association. This penetrating book slices through the cliches and blind alleys of discussions around the knowledge society to reveal the tendons of contemporary change. Written with insight and panache the book explains the momentous nature of the changes associated with the knowledge society.