Since the 1950s the Central Intelligence Agency has published an in-house journal, "Studies in Intelligence", for CIA eyes only. Now the agency has declassified much of this material. This book, which presents the most interesting articles from the journal, provides revealing insights into CIA strategies and into events in which the organization was involved. The articles were selected by H. Bradford Westerfield, who teaches courses on intelligence operations but has never been affiliated with the CIA. Westerfield's introduction sketches the history and structure of the CIA, sets the articles in context, and explains his criteria for selecting them. The articles cover a wide range of intelligence activities, including: the gathering of intelligence data inside the United States; analysis of data; interaction between analysts and policymakers; the development of economic intelligence targeted at friendly countries as well as at foes; use of double agents (the personal memoir of a CIA officer who pretended to the Russians to be their agent); evaluation of defectors (the Nosenko case); and coercive interrogation techniques and how agents can resist them.