DS-301c · Module 1

The One-Chart-Per-Slide Rule

3 min read

One slide. One chart. One insight. One sentence that states the insight. That is the rule. A slide with three charts communicates none of them. The executive's eye bounces between charts, looking for the story. The story is buried in the visual noise. One chart per slide means the audience looks at one thing, reads one annotation, and understands one point. The transition to the next slide advances the narrative. The presentation becomes a sequence of clear, connected insights rather than a wall of data. The exception: a comparison slide that deliberately places two charts side by side to show contrast. Even then, the contrast is the single insight. Not two insights. One insight that requires two views.

Do This

  • One chart per slide with a title that states the insight, not the topic
  • Use the slide title as a headline — "Pipeline velocity declined 18%" not "Pipeline Velocity Analysis"
  • Build the narrative through slide transitions, not chart density

Avoid This

  • Pack multiple charts on one slide to "save space" — space is not the constraint, comprehension is
  • Use generic slide titles that describe the data topic instead of the finding
  • Present raw data tables to executives — tables are for analysts, charts are for decision-makers