This bar chart displays population estimates for ten countries, using horizontal bars ordered by country name on the y-axis and population count on the x-axis. The visualization reads data from a CSV file and scales the population values by 1,000. It relies on D3 v5 APIs such as `scaleLinear`, `scaleBand`, `csv`, and `select` to render SVG rectangles, with bar widths proportional to each country’s population.