Hoover's FBI
J. Edgar Hoover: The Man and the Secrets
Enemies: A History of the FBI
Kennedy and Johnson
Secret Agenda: Watergate, Deep Throat, and the CIA
Secrecy and Power: The Life of J. Edgar Hoover
Who's Who In The JFK Assassination: An A to Z Encyclopedia
Bobby and J. Edgar: The Historic Face-Off Between the Kennedys and J. Edgar Hoover That Transformed America