Author Charles Gaines, who popularized the world of bodybuilding with ‘Pumping Iron,’ dies at 84 – ABC News – Breaking News, Latest News and Videos By The Bodybuilding Shop Author Charles Gaines, who popularized the world of bodybuilding with ‘Pumping Iron,’ dies at 84 ABC News – Breaking News, Latest News and Videos Brought to you by Google News. Read the rest of the article here. Reader Interactions