How is data visualization most effectively defined?

The most effective definition of data visualization is the graphical representation of data to enhance understanding. This definition highlights the primary function of data visualization, which is to take complex and often large datasets and convert them into formats that are much easier to interpret and analyze. By presenting data visually—through charts, graphs, and maps—data visualization helps stakeholders quickly identify patterns, trends, and insights that may not be immediately apparent in raw data.

Data visualization serves as a communication tool that aids in storytelling with data, making it accessible to a wider audience, including those who might not have a technical background. The focus here is on clarification and insight generation rather than prediction, collection, or statistical analysis, which are aspects that relate to other choices but do not capture the core essence of data visualization itself.