Sean Flannery
Sean Flannery
Sean Flannery is the pen name of author David Hagberg (1947-2019), a former Air Force cryptographer who traveled extensively in Europe, the Arctic, and the Caribbean. He spent more than thirty years researching and studying US-Soviet relations during the Cold War.
He wrote dozens of novels of suspense, including the bestselling High Flight, Assassin, and Joshua’s Hammer.
