Our Man in Havana. Graham Greene (1958). Conceptual cover design for the spy classic: A penetrating espionage thriller, character study, and political satire of government intelligence. It tells the story of MI6's man in Havana, Wormold, a former vacuum-cleaner salesman turned reluctant secret agent out of economic necessity. To keep his job, he files bogus reports and dreams up military installations based on vacuum-cleaner designs. Then his stories start coming disturbingly true.