md`**Resources:**
* D3: https://d3js.org
* D3 joins: https://observablehq.com/@d3/learn-d3-joins
* D3 shapes: https://observablehq.com/@d3/learn-d3-shapes
* D3 scales and axes: https://observablehq.com/@d3/learn-d3-scales
* Axes API: https://github.com/d3/d3-axis
* Scales API: https://github.com/d3/d3-scale
* Color scales API: https://github.com/d3/d3-scale-chromatic
* D3 color legends: https://observablehq.com/@d3/color-legend
* D3 gallery: https://observablehq.com/@d3/gallery
* Murray chapters 6, 7, 8
**Technology stack:**
* HTML5, DOM, CSS, SVG, JavaScript, D3, Observable
* D3 in JS vs. D3 in Observable?
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