This pie chart displays the top 10 countries by COVID-19 deaths, with each slice labeled in thousands and a corresponding legend. The visualization uses D3 v5 APIs including `d3.pie`, `d3.arc`, and `d3.scaleOrdinal` to compute and position the slices, while SVG renders the chart. Data is loaded asynchronously from a CSV file via `d3.csv` and sorted to select the top entries. The code also employs `d3.format` for readable tick labels and color-coded legend rectangles.