"The books covers much of what Hamilton said in a 2011 interview with ‘‘60 Minutes’’ and what he said he told federal criminal investigators looking into doping allegations on the Postal team. Officials closed that investigation in February without bringing any charges against Armstrong.
But Hamilton also provides sharper, personal details of what he says was an alleged doping program encouraged by Armstrong and other team leaders. He describes in detail how he and other cyclists doped and how they avoided getting caught.
‘‘Lance worked the system ... Lance was the system,’’ Hamilton wrote.