This horizontal bar chart displays the population of the top 10 most populous countries, with data from the UN World Population Prospects. The visualization uses D3 v5 APIs including `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to map population values to bar widths and country names to y-axis positions. Bars are rendered as SVG `rect` elements with a steelblue fill, and the data is loaded from a CSV file using D3's `csv` function.