No civilian government agency in the United States has received as much attention from authors as the Federal Bureau of Investigation. Much of the early writing consisted of laudatory pieces that parroted the output of the agency’s extensive public relations apparatus. This was followed by a reactive era of critical literature following the Watergate scandal and the death of J. Edgar Hoover. This article surveys the key literature on this controversial agency, including both perspectives and insider memoirs, Hoover biographies, and recent scholarly works.