What is the author's style in The Wise Men: Six Friends and the World They Made: Acheson, Bohlen,' by Walter Isaacson?

The Wise Men, Six Men and the World They Made, is written in the third person point of view with the authors, Walter Isaacson and Evan Thomas, functioning as narrators. This approach allows the authors to present the historical and background information that the reader requires. Since the book covers the period from World War II through the Vietnam War era, there is quite a bit of history involved and the authors present the material in a matter of fact manner.