William R. Forstchen is an American author and historian, best known for his works in the science fiction and historical fiction genres. He gained significant recognition for his novel One Second After, which explores the aftermath of an electromagnetic pulse (EMP) attack on the United States. Forstchen's writing often reflects his interest in military history and the implications of technology on society. In addition to his fiction, Forstchen has written non-fiction works and has been involved in academia, teaching history at various institutions. He has collaborated with notable figures, including Newt Gingrich, on political and historical topics. His diverse body of work has made him a prominent voice in contemporary literature.