This example shows the populations of the ten most populous countries using a horizontal bar chart. D3 v5’s `scaleBand` and `scaleLinear` map countries and population counts to positions, while custom `axisBottom` and `axisLeft` axes display formatted tick labels and gridlines. The SVG renders steel-blue bars that turn navy on hover, with a tooltip displaying the exact population. Data is loaded from a CSV file and multiplied by 1000 before plotting.