This example visualizes Premier League team transfer spending across seasons. A dropdown selects the season or the average, and a second dropdown toggles between transfer-in and transfer-out values. The horizontal bar chart sorts teams by name, with bar lengths encoding the monetary amount and bar colors assigning a unique color per team via `d3.scaleOrdinal`. The visualization updates by filtering the loaded CSV data and redrawing SVG rectangles using `d3.scaleLinear`, `d3.scaleBand`, and `d3.axisBottom`.