Vienna, located at the heart of Europe was the city of choice for American, British, German and Russian spymasters in their merciless trade, to plot against one another and steal secrets. For the first time a book is dedicated to the secret stories of spymasters, their tradecraft and secret sources from the end of the World War I, the Interwar with the rise of Nazis to the Second World War and the Cold War. The rich of culture and music Vienna...