This stylized bar chart displays the top 10 most populous countries for 2020, using data from the United Nations World Population Prospects 2019. The chart renders horizontal bars with a clean, modern aesthetic, featuring a teal fill and a Poppins font. Built with React and D3 v5, it uses `scaleBand` for the categorical y-axis and `scaleLinear` for the population x-axis, with bars rendered as SVG `<rect>` elements. Tick labels are formatted using D3's `format` function to abbreviate large numbers, and the visualization is generated from a CSV file loaded with D3's `csv` function.