Explain Tufte's concept of "chart junk"

Explain Tufte's concept of "chart junk"



All visuals elements in charts and graphs that are not necessary to comprehend the information represented, or that distract the viewer from this information

Examples of unnecessary elements include:
- Unnecessary text
- Heavy or dark grid lines
- Ornamented chart axes
- Pictures
- Background
- Unnecessary dimensions
- Elements depicted out of scale to one another
- 3-D simulations in line or bar charts

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