A stacked bar chart displays the top 10 data science job titles by total salary in US dollars, aggregated from a remote CSV dataset. The visualization uses D3.js v7 with SVG rendering, employing `d3.rollups` to sum salaries per title and `d3.scaleBand`/`d3.scaleLinear` for axes. Each bar is colored via `d3.scaleOrdinal` with `d3.schemeCategory10`, and a legend maps colors to job titles. Hovering increases bar opacity through CSS.