Following Mary A. Bufwack and Robert K. Oermann's marvelous study, Finding Her Voice: Women in Country Music ( LJ 9/1/93), this work by a regular contributor to Country Music magazine compresses 70 years (1920-92) of country music facts into a handy reference tool. Beginning with a summary of the roots of country music (1848-1919), Millard culls pertinent and obscure information and organizes it into a compilation of industry milestones, important recordings, debut artists, and profiles of entertainers. A bit more detail about the entertainers would have been nice, but Millard acknowledges that his study only touches the surface of a huge topic. Whereas Bufwack and Oermann concentrate on women in country music and explore its social and political history, Millard spans the industry as a whole. Recommended for most libraries.-- Kathleen Sparkman, Baylor Univ., Waco, Tex.