This stylized bar chart displays the top 10 most populous countries using United Nations World Population Prospects 2019 data. The visualization renders SVG rectangles for each bar with a React-based component hierarchy, using d3-scale functions like scaleBand and scaleLinear to map country names and population values. The chart incorporates a custom text width measurement utility to position the axis label, and includes tooltips showing formatted population values. The design uses a clean aesthetic with Poppins font, teal bars, and muted axis styling.