Diagnose chartjunk and remove non-data ink without stripping away meaning.
Why the clutter hurts Tufte’s test is ruthless and useful: every visible element must earn its place. If a mark does not encode data, explain the scale, or direct attention to the decision, it is taking up scarce visual bandwidth. In a business chart, that cost shows up as slower reading and weaker decisions. What pre-attentive vision does instead Your audience notices contrast, position, size, and color before they read the caption. That means decorative effects are not harmless. They become false priorities. The more you spend those cues on bevels, shadows, and rainbow fills, the less capacity remains for…
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