A horizontal bar chart displays the top 30 countries by 2020 population, with bars sorted by country name and lengths proportionally scaled to population values. The visualization uses React to render SVG elements, with D3 v5 scales (scaleBand and scaleLinear) mapping data to positions. CSV data loads from a GitHub repository and processes the 2020 column by multiplying by 1000. The chart includes axis components with formatted tick labels converting G to B for billions, plus a light green bar fill and tooltips showing exact values.