This bar chart displays the net worth of billionaires from the Forbes 2025 list, using horizontal bars on a rotated x-axis to show each individual's wealth in billions of US dollars. The visualization is rendered as an SVG with D3.js v7, using `d3.csv` to load the data, `d3.scaleBand` for the categorical axis, and `d3.scaleLinear` for the value axis. Interactive tooltips appear on mouseover, showing the billionaire's full name and net worth through D3's transition system.