This dashboard presents three linked charts analyzing a sales report dataset loaded via `d3.csv`. It shows product distribution by size as a bar chart, by color as a pie chart using `d3.pie` and `d3.arc`, and by category as another bar chart. Each chart uses `d3.rollup` to aggregate counts, with `d3.scaleOrdinal` and `d3.schemeCategory10` for color encoding. Tooltips appear on hover, and all visualizations render as SVG elements in separate divs.