What are heat maps?

Heat maps are a data visualization tool that uses colors to represent different data values. In the business context, they can be used to visualize a variety of data, such as regional sales of different brands, as mentioned in the provided content. Lighter colors usually represent higher values, while darker colors represent lower values. This allows users to quickly see which areas are performing high or low. Additionally, heat maps can be fully customizable, allowing users to adjust them to their specific needs.