What is the author's style in Plan of Attack by Bob Woodward?

Plan of Attack is a veteran investigative reporter's of how George W. Bush and his key advisors decided on and planned the U.S. invasion of Iraq in 2003. Author Bob Woodward has been a reporter at the Washington Post,where with colleague Carl Bernstein, he followed the trail from the Watergate burglars to Richard Nixon's Oval Office taping system.