Data visualization is the process of transforming complex data and information into visual representations, such as charts, graphs, and maps, to help people better understand and interpret the data. It combines the power of data analysis with the art of design to create visually appealing and informative displays that can reveal patterns, trends, and insights that may not be apparent in raw data. By presenting data in a visual format, data visualization allows for easier and more efficient communication of information, making it a valuable tool for decision-making, problem-solving, and storytelling.