This map of world population for 2020 uses blue circles overlaid on a natural Earth projection to show country-level population sizes, with each circle’s area scaled proportionally. The visualization uses d3.geoPath and d3.geoCentroid to project country polygons and place circles at centroid positions, while d3.scaleSqrt maps population counts to radii. A custom legend with formatted tick labels explains the scaling. Data comes from the UN population estimates, and tooltips reveal exact country names and population figures on hover. The renderer is SVG.