This area chart displays total monthly electronic sales from September 2023 to September 2024, with the x-axis showing months and the y-axis showing sales in USD. The chart uses a steelblue filled area to represent sales trends over time. Built with D3 v6, the code loads CSV data from a GitHub repository, groups and sums sales by month using `d3.rollups` and `d3.timeMonth`, and renders the area with `d3.area`. Axes are generated using `d3.axisBottom` and `d3.axisLeft`, with custom monthly tick formatting and rotated labels.