Top 40

The Top 40 is a radio format that measures the top forty songs in any music genre. The Top 40 became a dominant radio format in the 1960s, 1970s, and 1980s.

 Music charts 
Adult Top 40 (Billboard)
Pop Songs (Billboard)
UK Singles Chart
Dutch Top 40 (is a Dutch music chart)
Los 40 Principales (in Spain)
Ö3 Austria Top 40 (the official Austrian music chart)

 Books 
 Pete Battistini, "American Top 40 with Casey Kasem The 1970s", Authorhouse.com, January 31, 2005.  
 Susan Douglas, Listening In: Radio and the American Imagination (New York: Times Books, 1999)


 Ben Fong-Torres, The Hits Just Keep On Coming: The History of Top 40 Radio (San Francisco: Backbeat Books, 1998)
 Elwood F. 'Woody' Goulart, The Mystique and Mass Persuasion: Bill Drake & Gene Chenault’s Rock and Roll Radio Programming  (2006)
 David MacFarland, The Development of the Top 40 Radio Format (New York: Arno Press, 1979)

 Other websites 
Billboard Top 40 Mainstream 
Public Radio documentary featuring a history of Top 40

Category:Pop music
Category:Record charts