Karl
Hartig
charts, diagrams,
data visualization
charts, diagrams,
data visualization
|
Karl
Hartig
charts, diagrams, data visualization |
|
 |
|
Music Industry
Charts of Recording Industry Association of America data. The top chart shows consumer purchases by type of music from 1987 to 1997. More than a third of the music sold is Rock (red). The bottom chart shows consumer purchases by type of media from 1973 to 1997. Notice the switch from cassettes (orange) to CDs (green). |