He has worked for The Washington Post as a reporter, as special assistant and Chief Speechwriter to Senate Majority Leader Howard Baker, and executive VP of original programming for USA Network.
He is known for his best selling books told in an oral history format of subjects including Saturday Night Live, ESPN, and the Creative Artists Agency.
Miller commented on his unique investigative style, "I love looking at organizations and studying and reporting on how they operate, what the culture is inside, and how the strategy changes over the course of a company’s life.
[3] Miller's first book about Hollywood, Powerhouse: The Untold Story of Hollywood's Creative Artists Agency, centered on the rise of Creative Artists Agency (CAA).
Miller announced in 2019 that his next project will be an oral history of media giant HBO.