Since its beginnings in the 1920s, country music has soared beyond an almost exclusively regional audience to become America's most popular form in the 1990s. Seventy years of regional modernization have framed it for broad appeal in today's popular culture.

Here is a fascinating book that offers perspective on contemporary country music's stars, promoters, and fans. It probes deeply to learn how a vibrant country music culture evolved from rustic radio programs to become aggressive promotion of recording artists and an extended network of performers and fans unparalleled in other forms of...