This example displays a horizontal bar chart of the ten most populous countries, with population values in thousands. The chart customizes both axes by removing domain lines, adding grey tick lines for the x-axis, and styling tick labels. Built with D3.js v6, it uses `scaleLinear` and `scaleBand` for scales, `axisBottom` with a custom tick format, and `axisLeft` for the categorical axis. Data is loaded from a CSV file.