ggplot2 is an R package designed for data visualization. It provides a powerful and flexible framework for creating a wide range of static and interactive graphics. By using a layered approach, users can build plots incrementally, adding elements like points, lines, and labels to represent their data effectively. The package is based on the Grammar of Graphics, which allows users to describe the components of a plot in a systematic way. This makes it easier to create complex visualizations while maintaining clarity and consistency. ggplot2 is widely used in data analysis and reporting across various fields.