An expert fiddler and a magnetic showman, Bob Wills (1905-1975) popularized a style of Southwestern dance music known as western swing, a rhythmic hybrid of fiddle music, blues, and big band swing. In 1938, when Wills was thirty-three and nearing the height of his fame, journalist Ruth Sheldon chronicled Wills's rags-to riches rise. She produced a biography that captures the ebullient personality of Wills and reflects the bandleader's vision of himself...