The O.S.S. and I, first published in 1957, is the fast-paced, detailed account of William Morgan's service as a member of the O.S.S. (Office of Strategic Services, the predecessor of the modern-day CIA) during the Second World War. Morgan, a psychologist, served first as an instructor and evaluator of O.S.S. candidates, testing their mental and physical suitability for hazardous, dangerous duty as spies and saboteurs behind enemy lines. Morgan then went on a mission himself, parachuting into occupied France and working with French resistance guerrillas (the Maquis) to undermine German military efforts prior to the Allied invasion in June 1944. Of special interest are the detailed descriptions of the training exercises, designed to test the applicant's creative-thinking and problem-solving skills. Included are eight pages of photographs.