This example displays a horizontal bar chart of the ten most populous countries, using population data from a CSV file. D3 v5 scales are used to map countries to y-axis bands and population values to bar widths, with axes formatted to abbreviate large numbers. The chart is rendered as SVG, with gridlines and labels styled via CSS. The code imports specific functions from the d3 library, including `scaleLinear`, `scaleBand`, `axisLeft`, `axisBottom`, `csv`, and `max`.