This horizontal bar chart displays the 2020 population estimates for 30 countries, sorted by country name. The visualization uses a React application with D3 v5 (d3.scaleBand, d3.scaleLinear, d3.max, d3.format) and renders SVG elements. The x-axis uses a custom tick format that abbreviates large numbers (e.g., 'B' for billions), while the y-axis lists country names. Data is loaded from a remote CSV file using d3.csv, and CSS styles customize the tick lines and text colors.