Book excerpt: Governments and researchers from industrial countries have been measuring science and technology for more than seventy years. This book provides an historical examination of official science and technology statistics and indicators in Western countries and addresses the following questions: What were the main historical moments that led to the development of statistics on science and technology? What were the main socio-political stakes behind the activities of science measurement? What were the philosophical and ideological conceptions that drove measurement? What statistics and indicators were developed and how were they constructed? The first part of the book concentrates on the construction and development of science and technology statistics from 1930 to the present, the principles at work, and the vested interests and forces behind that construction. The second part analyzes to what uses statistics were put, and with how much confidence actors used statistics to document their case or to promote their political agenda.