Question

If the title of a chart does not convey enough information, the designer may need to
1. use longer, more detailed labels within the chart.
2. insert more information into a caption below the chart.
3. add a few lines of explanatory text between the title and the chart.
4. add a subtitle.

Answer 1

All four are valid options — use whichever (or a combination) best fits how much and what kind of information the reader needs.

Brief guidance on when to use each:
- Add a subtitle (4) — good for a short, immediate expansion of the title (time period, location, key takeaway).
- Use longer, more detailed labels within the chart (1) — necessary for axis labels, units, series names, and brief callouts that keep the chart interpretable without forcing the reader to hunt for meaning.
- Insert more information into a caption below the chart (2) — appropriate for longer explanations, methods, data sources, caveats, and anything that would clutter the visual if placed inside the chart.
- Add a few lines of explanatory text between the title and the chart (3) — useful for a concise lead-in or to highlight the main insight; avoid repeating what’s already in subtitle/caption.

Keep text concise, avoid redundancy, and place the detail where readers expect it (subtitle for quick context, caption for fuller explanation, labels/annotations for chart-specific clarity).