Hunter S. Thompson uses a unique style of writing he calls Gonzo Journalism. In his book the Hell's Angels, Thompson deplores a rambling rolling style of writing that sucks in the audience and makes the reader feel as if he or she is actually experiencing the action. Thompson's writing technique requires hands on experience. He lives what he writes. The technique compares to the acting technique known as method acting.
Method actors try to become their character to capture the presence of that character.
Robert DiNiro in Raging Bull, Val Kilmer in The Doors, and Marlon Brando in Apocalypse Now used method acting. He gets into the heads of Sonny Barger, the leader of the Hell's Angels, and several other outlaws. Thompson realizes the necessity of uncovering both sides of a story in order for the truth to be revealed. The only way to write truthfully about the Angels is to join them and find out what makes them tick. The book starts with Thompson weary of his relationship with the Angels, but that soon changes- although he never trusts the Angels.