This stylized bar chart visualizes the top 15 countries by population using a horizontal bar layout. Built with React and D3, it employs `scaleBand` for the categorical y-axis and `scaleLinear` for the population x-axis. The SVG rendering includes custom axes and tooltips that format numbers with D3's `format('.2s')`. Data comes from the UN Population 2019 CSV, loaded via `d3.csv`. The chart displays population values with a teal color scheme, and the country labels are positioned on the left side.