This stacked bar chart visualizes the distribution of book ratings across six literary genres, with each bar divided into four rating categories from below 3.0 to above 4.5. The visualization uses D3 v7 with an SVG renderer, employing d3.stack for data transformation, d3.scaleOrdinal for color mapping, and d3.scaleBand for the categorical y-axis. Interactive tooltips appear on mouseover to display precise percentages for each rating segment, with data loaded from a local CSV file.