Once a shoestring operation built on plywood sets and Australian rules football, ESPN has evolved into a media colossus. A genius for cross-promotion and its near-mystical rapport with its viewers empower the network to set agendas and create superstars, to curate sports history even as it mainstreams the latest cultural trends. Travis Vogan teams archival research and interviews with an all-star cast to pen the definitive account of how ESPN turned...