This bar chart displays population estimates for the ten most populous countries, using horizontal bars ordered from largest to smallest. The visualization is built with D3 v5, loading CSV data and rendering as SVG. It uses `d3.scaleLinear` for the x-axis and `d3.scaleBand` for the categorical y-axis, with axes generated by `d3.axisLeft` and `d3.axisBottom`. The chart demonstrates basic SVG features including margins, scales, and rect elements filled in steel blue.