Almost as familiar as the images of the American West he painted and sculpted is the figure of Charles M. Russell himself. Standing or mounted, in boots and wide-brimmed hat, sash knotted at his waist, gaze steady under a hank of unruly hair: he is the one and only "Cowboy Artist." What is not so well known is the story that unfolds in the myriad photographs of Russell, pictures that document a remarkable life while also reflecting the evolution of photography and the depiction of the American West at the turn of the twentieth century. This biography makes use of hundreds of images of...