EC-301f · Module 2

Chart Simplification

3 min read

Every chart has default elements that are included because charting tools default to them, not because they serve the executive audience. Gridlines, axis labels at every increment, data labels on every data point, borders around the chart area, a legend that names series the visual makes obvious — these defaults are not neutral. Each one adds extraneous cognitive load. Remove them systematically.

Do This

  • Remove gridlines — the eye can compare bar heights without a grid; the grid is visual noise for executives
  • Label only the data points that matter — the bar being discussed, the benchmark, the trend's start and end
  • Remove the chart border — it creates a visual container the executive has to process before they read the data
  • Remove legend entries for series that are labeled directly on the chart — direct labels reduce one cognitive step
  • Reduce axis increments to three or fewer labels — the executive does not need to read every tick mark

Avoid This

  • Accept charting tool defaults — they are designed for analysis, not executive communication
  • Label every data point "for completeness" — label only the point that supports the claim
  • Include a legend when you can label series directly on the chart — legends require the eye to travel
  • Keep gridlines because "they help read the values" — the value is on the label; the gridline is redundant
## CHART SIMPLIFICATION CHECKLIST

Remove these default elements unless there is a specific reason to keep them:
☐ Chart border / frame
☐ Gridlines (major and minor)
☐ Axis title (if the chart headline makes the axis obvious)
☐ Legend (replace with direct series labels on the chart)
☐ Data labels on non-focal data points
☐ Tick marks on axes not being referenced
☐ 3D effects, shadows, gradients
☐ Chart background fill (use white or transparent)
☐ Gap between bars (reduce to 20-30% max)

Keep these elements:
✓ Headline (conclusion as a complete sentence — above or below)
✓ Data labels on the ONE or TWO points being discussed
✓ Benchmark line or bar with its value labeled
✓ Axis with 2-3 value labels to orient scale
✓ Source line (small, bottom)
✓ Annotation (text or arrow pointing to the key data point)

Test: after simplification, can the executive read the point
in under 5 seconds without the presenter narrating?
If yes: the chart is ready.
If no: there is still an element creating friction. Find it.