This choropleth map visualizes global population distribution for 2024, using a yellow-green sequential color scale to represent population values for fifteen major countries while leaving others in light gray. The map renders with `d3.geoNaturalEarth1` projection and `d3.geoPath` over TopoJSON country boundaries from the world-atlas package. Hovering over a country reveals a tooltip with the country name and population figure, while a gradient legend with `d3.axisBottom` displays the value scale. The visualization uses D3 v7 and the topojson-client library to convert TopoJSON features into renderable paths.