This example visualizes the ten most populous countries as horizontal bars, drawn with SVG rectangles. It maps population values to bar lengths using a linear scale and country names to vertical positions with a band scale. The visualization is built with D3 v5, using `csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to load data and render axes. The data comes from a CSV file and is processed by multiplying population figures by 1,000 before scaling.