Starting in 1955, America began tracking its favorite songs on the Top 40 Charts. More than a record of our collective music tastes, the charts became snapshots that reveal who we are. Now Thomas Ryan takes us through all forty years, providing a wealth of insight based on exhaustive research. Arranged chronologically, American Hit Radio puts 1,250 of the Top 40 songs in perspective, spotlighting 500 with carefully crafted essays describing the artists?...