This pie chart visualizes the top 10 store areas by sales from a Superstore Sales dataset. The chart applies a rank-based weighting to the sales values before rendering, making higher-ranked areas appear proportionally larger. Built with d3.v7, the visualization uses `d3.pie()` and `d3.arc()` to generate SVG slices, with an ordinal color scale for differentiation. Labels and a legend display store area names and weighted values, while the data is loaded via `d3.csv()` from a GitHub gist.