This bar chart displays population counts for ten countries, sorted by country name along the vertical axis and using horizontal bar lengths to represent population values on a linear scale. The visualization is built with D3 v5, loading data from a CSV file and rendering to SVG. It uses `d3.csv`, `d3.scaleLinear`, `d3.scaleBand`, `d3.axisLeft`, and `d3.axisBottom` to map the data, draw axes, and append rectangles for each bar within a margin-defined group.