This pie chart displays the distribution of world population by country. It visualizes the proportional share of each nation's population through colored slices, with a legend to the right identifying each country and the population values labeled directly on the slices. The visualization uses D3.js v6, loading data from a CSV file hosted on GitHub Gist, and relies on D3's `pie`, `arc`, and `scaleOrdinal` APIs to generate the chart, with SVG elements for rendering the pie slices, labels, and legend.