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David Downing
David Downing (born 1946) is a British author of mystery novels and nonfiction. His works have been reviewed by Publishers Weekly, The New York Times, and The Wall Street Journal. He is known for his convincing depictions of World War II and Berlin. He has written a series of espionage thrillers, based around Anglo-American character John Russell exploring Germany in the 1940s. They are known as "The Station Series" because they are all named after train stations, mostly in Berlin.
Source: Wikipedia