A scatter plot displays population density for twenty Slovak towns, with each circle representing a town positioned along categorical y-axis and linear x-axis scales. The visualization uses d3.scaleLinear for density values and d3.scalePoint for town names, with axes generated through d3.axisLeft and d3.axisBottom. Data loads from a CSV file using d3.csv, and the SVG rendering applies a steelblue fill to all circles.