A choropleth map of Bangladesh visualizes district-level deprivation, encoding the "poor" poverty percentage from a local salesData.json file through a blue color scale. Built with D3 v5 and TopoJSON, the map uses d3.geoMercator and d3.geoPath to render SVG paths, with d3.zoom enabling pan and zoom. Hovering over a district triggers a tooltip via appended title elements, displaying the district name, ID, and extreme and poor deprivation percentages.