This stacked area chart shows how IMDb movie ratings are distributed across genres, with each genre’s five rating bands (from below 5.0 to above 8.5) stacked to sum to 100%. The visualization uses d3.stack() to compute the layered series and d3.area() with a basis curve to render smooth shapes, while d3.scaleOrdinal assigns distinct colors to each rating category. The SVG chart includes axes, a legend, and a title, and it reads data from a local CSV file using d3.csv().