Charts add a strong visual impact to your data and make it easier to spot trends, areas of concern, and successes.
Charts can only be generated from data with the format Number (with the exception of the Timeline chart). If you try to generate a chart from data with any other format, a message tells you that your data selection is invalid and provides a link to Anapedia.
There are many kinds of chart type, and different ways of working with the data in those charts. Choosing the right chart for the job is key, as is knowing how to create different kinds of reports.