"Pumping Iron: The Art and Sport of Bodybuilding" by Charles Gaines is a 1974 paperback book that explores the world of bodybuilding. Written in English and published by Little, Brown Book Group, the book delves into the art and sport of bodybuilding, providing readers with insights into the culture and techniques of this popular fitness trend. With a focus on the intricacies of bodybuilding, the book caters to sports enthusiasts and those interested in the aesthetic aspects of this competitive discipline.