Barbara K Iverson

You can avoid this or other similar mistakes if you try to think from a readers perspective. Or try to get feedback from your colleague or friend before publishing it. Ask them how easy it is to interpret the charts? Are they able to easily compare the two charts? Also use ‘labels’ wherever necessary. Pie charts above did not have data labels whereas ‘stacked column chart’ had clear labels.

(via 7 most common data visualization mistakes)