This visualization shows a hierarchical tree of LinkedIn job postings, organized by companies (Crocs and Stealth), then by location (New York, Los Angeles, Austin, Chicago), and finally by employment type (full-time, part-time, internship, contract). The root node appears as a purple circle, company nodes as orange rectangles, location nodes as blue circles, and job types as green diamonds. The code uses d3.hierarchy and d3.tree() to compute the layout, then draws curved links with d3.linkHorizontal() and renders SVG shapes with appended text labels.