Data visualization is the practice of representing data in a visual context, such as charts, graphs, and dashboards, to make complex information more understandable and accessible. By translating raw data into graphical formats, it helps to reveal patterns, trends, and insights that might not be immediately apparent from numerical data alone. Effective data visualization involves selecting the right type of visual representation—like bar charts for comparing quantities, line graphs for showing trends over time, or pie charts for illustrating proportions. Dashboards combine multiple visualizations to provide a comprehensive view of key metrics and data points, enabling users to quickly grasp and interpret information. Overall, data visualization is a powerful tool that enhances decision-making and facilitates better communication of data-driven insights.