What should titles of data visualizations do?

• A. Describe the data source exhaustively
• B. Focus on chart aesthetics
• C. Relate back to the insights being presented
• D. Show the exact numbers

Answer: (C)

A good data visualization title should connect the chart to the insight you want the viewer to take away. The title acts as a quick cue that frames the story the visualization is telling, guiding interpretation and helping readers grasp the main takeaway at a glance. When the title ties directly to the insight, it clarifies why the chart matters and supports fast, accurate decision-making.

Describing the data source exhaustively in the title can overwhelm or distract from the message the chart is intended to convey. Focusing on chart aesthetics misses the purpose of a title, which is to communicate meaning, not style. Stating exact numbers in the title is usually unnecessary and can clutter the message; numbers belong in the axis, labels, or annotations if needed.

So the strongest choice is the one that directly links the visualization to its key insight, providing context and guiding interpretation for the viewer.