James Munro was the pseudonym of a British writer named James William Mitchell (born 1926) who, in the late 1960s, wrote four spy thrillers under this byline. The hero is a British agent named John Craig, who works, mostly reluctantly, for Department K. The books, "The Man Who Sold Death"; "Die Rich, Die Happy"; "The Money That Money Can't Buy"; and "The Innocent Bystanders" were tough-minded, well-written, and well-plotted. Wikipedia
The definitive Wikipedia entry for James Munro. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/James_Munro_%28British_author%29