This interactive D3 map displays a world map with countries colored pink and overlaid with green-bordered circles, visualizing numerical values from a CSV dataset via a color-coded choropleth. Built with React and D3 v5, it loads GeoJSON topology data from the world-atlas package and uses topojson’s feature and mesh functions to render land and country boundaries as SVG paths, while the data CSV is joined by ISO country codes for the visual encoding.