This bar chart visualizes the sales volume of different coffee shop menu items, with each bar representing a specific coffee type. The data is loaded from a remote CSV file via `d3.csv` and parsed to convert sales figures into numbers. Using D3.js v7, the chart applies `d3.scaleBand` for the categorical x-axis and `d3.scaleLinear` for the y-axis, rendering bars as SVG rectangles. Axes are added with `d3.axisBottom` and `d3.axisLeft`, and the chart includes a title and axis labels. The x-axis labels are rotated for readability, and bars change color on hover.