This dashboard displays four coordinated D3 v7 charts from a 200-row CSV dataset: a scatter plot of units sold versus profit colored by region, a pie chart of revenue distribution across regions, a line chart of monthly revenue trends, and an area chart of cumulative monthly revenue. Each visualization uses SVG rendering with scales, axes, and color encoding via `d3.scaleLinear`, `d3.scaleOrdinal`, `d3.pie`, `d3.arc`, and `d3.rollups` for aggregation. The interactive layout includes grid lines and legends within styled chart sections.