This is the age of big data. It has changed how we improve every element of our businesses, from the layout of a web page to the marketing message you deliver to customers. By analyzing data, you can figure out exactly what your customers want. Of course, no one can look at a sea of raw data and extract any kind of insight. Numbers, letters, and data points mean nothing to the human eye. This is where data visualization comes in. Whether you know it or not, you’ve likely used data visualization.