This example shows a horizontal bar chart ranking the top 10 most populous countries, with population values on the x-axis and country names on the y-axis. The code uses React with D3 v5, loading data from a CSV file via `d3.csv` and rendering SVG elements. It employs `d3.scaleLinear` and `d3.scaleBand` for positioning, `d3.axisLeft` and `d3.axisBottom` for axes, and custom tick formatting with `d3.format` to abbreviate large numbers (e.g., converting billions to "B"). The bars are drawn via a data join, with a title and axis label added as text elements.