Get an inside peak at the world's most powerful law enforcement agency through the research of a New York Times bestselling author and award-winning journalist whose investigation brought down FBI director William S. Sessions in this unprecedented look at the people, power, and secrets of the FBI. From the author of Inside the CIA comes an in-depth profile of the inner workings and evolving priorities of the institution that generates the most curiosity, fear, and intrigue in the American government. Through a range of unimpeachable sources, both inside and outside of the agency, Ronald Kessler pens a controversial, headline-provoking expose of the Federal Bureau of Investigation. The FBI includes the entire June 24, 1992 letter from Kessler asking for William S. Session's comment on the evidence uncovered about the FBI director's abuse that led to an investigation of Director Sessions and his eventual dismissal. "A revealing glimpse of an American institution in transition." -Kirkus Reviews "A must-​read... a compelling account... of the contemporary FBI, warts and all." -Philadelphia Inquirer