This interactive visualization combines a bivariate choropleth map of U.S. counties with coordinated histograms to explore the relationship between unemployment rates and education levels. Using d3.geoPath with a TopoJSON atlas, the map colors each county by a 3x3 bivariate color scale, while brushing on either histogram filters the map and highlights counties in the selected range. Hovering over a county reveals its name in a label and marks its position in both histograms with vertical indicator lines. The visualization uses d3.brushX, d3.scaleQuantile, and smooth transitions to animate state changes between the coordinated views.