This multi-series line chart visualizes e-commerce performance trends over time, plotting three metrics—visitors, orders placed, and revenue in USD—across a 30-day period. Using d3.csvParse to load external CSV data, the visualization applies d3.curveCatmullRom for smooth line interpolation and d3.axisBottom/axisLeft for axes. Separate colored paths (steelblue, green, red) represent each metric, accompanied by a legend and gridlines generated via d3.axisLeft with tick sizing. The SVG rendering uses D3’s scaleLinear for x/y domains and appends title and axis labels dynamically.