This choropleth map of the world uses a Natural Earth projection to show numeric values per country, with a yellow-to-blue sequential color scale and interactive tooltips revealing ISO-Numeric IDs. Built with D3 v7, it loads TopoJSON from world-atlas, computes paths via `d3.geoPath`, and renders countries as SVG elements. A linear gradient legend and `d3.axisBottom` display the value range, while `d3.csvParse` maps the small inline dataset.