A horizontal bar chart displays the 2020 population estimates for 30 countries, with bars ordered by country name. The visualization uses React components to render SVG elements, with D3 scales (scaleBand and scaleLinear) and axes (AxisBottom, AxisLeft) handling positioning. Population values are loaded via d3.csv from a GitHub-hosted dataset, formatted in billions using d3.format, and rendered as green rectangles with tooltips showing each country's exact population.