This worldmap visualization displays global population estimates for 2018, overlaying semi-transparent circles on each country’s centroid, sized by population using a square-root scale. The map supports zooming and panning, with a color legend and size legend for reference. Built with D3 v5, it uses `geoNaturalEarth1` and `geoPath` for the map projection, `geoCentroid` for circle placement, and `zoom` for interactivity. Population data comes from a UN CSV dataset, merged with country geometries from a TopoJSON world atlas.