Soft cover, good condition except for first page which is pulling away from the spine.  1987.  This Danish translation comes from Ekstra Bladet Forlag and tells the story of Peter Wright, who was from 1949-1976 a "spy catcher" for the British intelligence  service.  The book was banned in the UK for its depiction of violent and illegal activities committed by British agents in the pursuit of Soviet spies, but it became a bestseller in the U.S. 408 pages.