A horizontal bar chart ranks the top 20 countries by 2010 population, using light green bars sorted in descending order. The chart reads population values from a CSV file hosted on GitHub, formatting the x-axis with abbreviations (e.g., "B" for billions) via d3.format. The visualization is built with D3 v7, using d3.scaleLinear for the x-axis, d3.scaleBand for the y-axis, and d3.axisBottom/d3.axisLeft for axes, rendered as SVG. The view automatically updates on window resize.