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Data & Analytics · Intermediate

Data-Ink Ratio

Edward Tufte's principle that the share of a graphic's ink devoted to data should be maximized and non-data ink minimized.

Definition

Maximizing data-ink means removing heavy gridlines, borders, 3-D effects and redundant labels that don't add information.

Exam tip

Removing gridlines, borders and 3-D effects increases the data-ink ratio.

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