The classic horizontal bar chart is something we’re all familiar with. For many of us, it was the first ‘chart’ we learnt in school, usually alongside Venn diagrams and line graphs. That’s because bar ...

Pie charts are a common choice for visualizing data, but their limitations often make them less effective in professional or technical contexts. As explained by Leila Gharani, pie charts struggle to ...

Guidance from data visualization specialists warns that some Excel chart types can confuse or mislead audiences. Examples include pie charts with many segments, 3D charts that distort perspective, and ...