Sparkline charts are data visualizations best used for showing many trends at once, as assets of small timelines. They are great for showing variation in some measurement in a simple and condensed way. A prime example of a sparkline chart is the market summary of the U.S. DOW Jones and S&P 500 stocks.
Sparkline charts are one of many types of data visualizations used to organize and present data in a way the audience can understand and take action on. To ensure visualizations have real business value, it’s important to know which types of visualizations are best suited for a given data set.