Annotated chart
Mark the point on a simple chart where the story happens.
Related: Big-number story · KPI / metric row
When to use
Use when a change-over-time or comparison needs a finger on one bar. Do not use a waterfall (that is bridge-waterfall). Do not use a 12-series line chart.
Guidelines
Few bars. One callout. Title is the annotation in sentence form.
Example
Same-day fill
Fill fell when dwell crossed four hours — not when we changed scanners.
Annotation is the argument; the bars are proof
W3 callout at 4.1h dwell. Steal one annotation, not a full Excel chart.
Rules
- One series unless a second series is the comparison.
- One callout marks the story bar.
- Title states the cause or turning point the chart supports.
- Axes or bar labels make the values readable without a legend spreadsheet.
User recipe
Goal: show where the story happens on a chart.
Inputs: series, the turning point.
Constraints: Annotated chart Rules plus Honest data rules.
Prompt skeleton: “Make an annotated-chart slide in family infographic-editorial using the Annotated chart rules. Series: [values]. Turning point: [which bar and why].”
Anti-patterns
- 3D columns.
- Legend with six colors and no callout.