This example presents a horizontal bar chart ranking the world’s most populous countries, with population values on the x-axis and country names on the y-axis. The code uses `d3.csv` to load the data and `scaleLinear` and `scaleBand` for positioning. Axis customization is central: the x-axis uses a custom tick formatter to abbreviate large numbers, while the y-axis removes its domain and tick lines. The chart is rendered as SVG, with grid lines drawn via `tickSize` and formatted using `d3.format`.