This example shows the top 10 countries by population as a pie chart, with a legend displaying brand names and values. It loads CSV data via `d3.csv`, processes it, and renders the chart using `d3.pie` and `d3.arc` to create the segments. Color encoding is handled with `d3.scaleOrdinal`, and the SVG output is appended to the document. The visualization highlights the proportional population distribution among the countries.