This visualization shows the distribution of IMDb movie ratings across six genres, with each genre represented as a bubble sized and positioned according to the percentage of films rated between 6.5 and 7.5. The chart also provides a detailed tooltip on hover, revealing the exact proportions for all five rating categories. The bubble chart is built using D3 v7's `scaleBand`, `scaleLinear`, and `scaleOrdinal` APIs, rendering as SVG with animated transitions for tooltip display. Data is loaded from a CSV file containing rating percentages for each genre.