The present volume covers the story of the history of CERN from the mid 1960s to the late 1970s. The book is organized in three main parts. The first, containing contributions by historians of science, perceives the laboratory as being at the node of a complex of interconnected relationships between scientists and science managers on the staff, the users in the member states, and the governments which were called upon to finance the organization. Parts II and III include chapters by practising scientists. The former surveys the theoretical and experimental physics results obtained at CERN in this period, while the latter describes the development of the laboratory's accelerator complex and Charpak detection techniques.