If you're interested in the history of the KGB this is an in-depth, factual account written by two exceptional intelligence directors. The late, Ion M. Pacepa, head of the Romanian Secret Police who defected to the West, in 1978, during the Carter administration. And his Co-Author, Robert James Woolsey, former Director of Central Intelligence (CIA) and Under Secretary of the Navy.
A fascinating story that brings to light the corruption, abuse of power, and influence peddling associated with the Soviet political system.