This stacked bar chart displays how readers rate book genres across three categories (Excellent, Good, Average), with each genre represented by a horizontal bar segmented by rating proportions. The visualization uses D3.js (v7) with an SVG rendering approach, loading data from a CSV file containing genre ratings as percentages. The code employs `d3.stack()` with `stackOrderNone` and `stackOffsetNone` to build the segments, along with `d3.scaleLinear` for the percentage axis and `d3.scaleBand` for genre categories. Users can click any segment to see the exact rating percentage via an alert.