Seaborn is a Python data visualization library based on Matplotlib that provides a high-level interface for drawing attractive and informative statistical graphics. It is built on top of Matplotlib and extends its capabilities to provide a range of visualization tools, including heatmaps, scatterplots, and bar charts. With Seaborn, users can easily create informative and attractive visualizations to communicate insights and trends in their data. Seaborn is widely used in data analysis, machine learning, and scientific computing, and is known for its ease of use, flexibility, and customizability. Seaborn offers a range of features, including data visualization, data analysis, and customization options, to help users create high-quality visualizations.