Visualization techniques are methods used to represent data or concepts visually, making complex information easier to understand. These techniques can include charts, graphs, and diagrams, which help to highlight patterns, trends, and relationships within the data. For example, a bar chart can show sales growth over time, while a pie chart can illustrate market share among different companies. Another popular visualization technique is infographics, which combine images and text to convey information quickly and effectively. By using colors, shapes, and layouts, these visual tools engage the audience and enhance comprehension. Overall, visualization techniques are essential for effective communication in fields like data science and business analytics.