The author goes even further, suggesting casual charters drop not just the pyramid chart, but 3-D charts altogether: I would argue that everything below "2-D Column" [in Excel] should be banned ...

The charts are typically formatted in a pyramid style to allow the identification ... How to Change Series Data in Excel How to Change Series Data in Excel. To update your Microsoft Excel ...

When you create a chart in Excel using positive and negative values, both positive and negative graphs are the same color by default. Another way to display the chart is to change the color of the ...