This pie chart visualizes the count of sales across different regions from a CSV dataset. The pie slices show sales values in thousands, with a legend on the right identifying each region and its corresponding value. The chart uses D3 v5, including the `pie` and `arc` functions to generate segments and compute centroids for labels. Data is fetched asynchronously using `d3.csv`, and colors are mapped via `scaleOrdinal`, with axis labels added manually via SVG text elements.