In view of the recent decline of the quality of various domestic energy and natural resources and the uncertain nature of the availability of foreign supplies it is becoming increasingly important for many countries to be able to forecast more reliably the demand for energy and resources. Many of the volumes in this set, originally published between 1936 and 1995, provide models with which to measure the impact of policy decisions and technological change. Others analyze and discuss many of the issues which have enduring relevance: ailing global coal mining industries, the advent of new energy forms, increased competition from cheaper sources, strict pollution legislation and the impact that all of these issues have on productivity and employment.