This is the ninth edition of Joel Whitburn's "Top Pop Singles"-Music fans & those who work in the radio business will refer to this volume time & time again-Not only do you find every artist & their hits from 1955-1999,but you also get a list of songs that were only "airplay hits",such as "Don't Speak" by No Doubt or "One Headlight" by the Wallflowers-If you're curious as to how much your old 45's are worth,the prices are located next to the song titles for easy reference-True,it's a bit pricey,but definitely worth every penny.