This bubble chart visualizes the relationship between Revenue, Profit, and Market Share for major tech brands using data from bubblechart.csv. Each circle’s position encodes revenue (x-axis) and profit (y-axis), while its radius represents market share percentage. Built with D3 v7, the visualization uses `d3.scaleLinear` for axes and bubble sizing, `d3.scaleOrdinal` with `d3.interpolateTurbo` for categorical coloring, and SVG circles. Interactive hover tooltips display detailed values, and a custom legend shows both size scaling and brand color mapping.