Data visualization transforms raw data into visual representations like charts, graphs, and maps, making complex information accessible and actionable at a glance. As a bridge between data analysis and communication, it operates across every domain—from business intelligence and scientific research to journalism and public policy. The key distinction lies not just in choosing the right chart type, but in understanding perceptual principles: how the human visual system processes color, shape, position, and pattern to extract meaning faster than any table or report could deliver.

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