This horizontal bar chart ranks the top 10 most populous countries, using population values derived from a CSV file where the raw numbers are multiplied by 1,000. Built with D3 v5, it employs `d3.scaleLinear` for the x-axis, `d3.scaleBand` for categorical y-axis labels, and custom axis tick formatting via `d3.format` to display abbreviations like "B" for billions. The SVG rendering includes a title, rotated axis labels, and styled grid lines and ticks.