This stylized bar chart displays the population of the ten most populous countries for 2020, sourced from the UN Population dataset. The horizontal bars extend from zero based on a linear scale, with a custom formatter converting values (e.g., "1.4B"). Built with React and rendered as SVG, the visualization employs `d3.scaleBand` for the categorical y-axis and `d3.scaleLinear` for the quantitative x-axis, drawing tick marks via `AxisBottom` and `AxisLeft`. Hovering over a bar reveals its exact population through a native `<title>` tooltip.