▮ Bar chart
Compare categories on a shared baseline — the default honest chart for reports, ads and assignments.
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📈 Line chart
Show change through time with a continuous path — the workhorse of reports and science homework.
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◐ Pie & donut
A seductive part-to-whole shape — powerful in ads, dangerous when slices multiply.
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⚬ Scatter plot
Two measured variables as a cloud of points — the honest way to talk about correlation.
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▦ Heatmap
A matrix of intensity — dense, seductive, and easy to lie with a rainbow scale.
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📶 Waterfall
How a total was built — start, pluses, minuses, end. The finance slide that still earns its keep.
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▽ Funnel
Stages that shrink — marketing and ads love it; science class should ask whether the widths are honest.
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▭ Treemap
Hierarchy as nested rectangles — files, budgets and portfolios when a pie would choke.
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📶 Histogram
Counts per bin — how a measurement piles up, not how categories compare.
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