Book excerpt: Technological Change gathers together examples of the best current thinking on methodology and the theoretical perspectives that are increasingly of concern to historians of technology, whilst at the same time presenting other papers which reflect the 'state of the art' in key areas of historical debate. The volume emphasises the need both to establish a common forum for theoretical and empirical research and also to delineate the shared concerns of these two treatments, which are too often reflected as conflicting rather than mutually supportive approaches to the writing of the history of technology.