This example shows a pie chart of sales data for the top 10 products, with a legend displaying each product name and its corresponding sales value in units. The chart uses D3 v5’s `pie`, `arc`, and `scaleOrdinal` with `schemeCategory10` for coloring segments, and renders via SVG. Data is loaded asynchronously from a CSV file using `d3.csv`, sorted by sales, and sliced to the top 10. Hovering over a slice logs the sales value to the console. The visualization is built within a React starter framework.