Anyone who has ever had to deal with the data, understand the importance of visualization. One thing to show the user a table with dozens of rows and fields, and quite another visualize this data in a form of the chart. The great advantage of the chart, that it can be interactive - the ability to recognize the values of the point under mouse pointer, also zooming range of interest and other goodies.
Here a review of popular JavaScript libraries for drawing charts, that do not require Flash and can be used free of charge.
Here a review of popular JavaScript libraries for drawing charts, that do not require Flash and can be used free of charge.
