He's the subject of the biographies "Official and Confidential" & "The Man and the Secrets"
He's not 
kidding: Hoover's story unfolds against the tumultuous immigrant ... By: Ackerman
, Kenneth D. Published: (2007); J. Edgar Hoover : the man and the secrets / [DOC] [TLE] [J. Edgar Hoover: The Man and the Secrets] This book is terrifying ... [PAR] Reading Hoover's biography is like reading the history of an evil mastermind.