A true artifact of the 1950's Cold War era. A handbook for US intelligence assets on how and what to photograph in order to provide the most useful information for intelligence analysts. From the Introduction: "A concise guide for collecting ground phoography and related photographic data. It directs attention to the efficient use of photographs in the world-wide intelligence collection system. The attache, the photographer's mate, military personnel on leave, and civilian travelers take photographs at every turn. When planned, such photography becomes an important source of physical intelligence."