A choropleth map is a type of thematic map that uses different colors or shading to represent statistical data across specific geographic areas. Each area, such as a country, state, or county, is filled with a color that corresponds to a particular value or range of values, making it easy to visualize patterns and trends in the data. These maps are commonly used in fields like geography, sociology, and public health to display information such as population density, income levels, or election results. By providing a visual representation of data, choropleth maps help users quickly grasp complex information and identify regional differences.