A horizontal bar chart displays the population of ten countries, with bars ordered vertically by country name and extending horizontally to represent each nation's population in millions. The visualization uses CSV data loaded from a file, with population values multiplied by one thousand. Built with D3 v5, the chart employs `scaleLinear` for the x-axis, `scaleBand` for the y-axis, and renders SVG rectangles with axes annotated via `axisLeft` and `axisBottom`.