This example presents a horizontal bar chart of population data for ten countries, drawn from a CSV file. It uses D3 v6 APIs including `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to position bars and axes. Custom axis formatting converts large numbers into abbreviated labels like "B" for billions, and the chart includes styled titles and labels. The bars render as SVG rectangles filled with a linear gradient, while tick text uses a separate gradient for visual distinction. The chart also removes default axis domain lines and tick marks.