Data science is an interdisciplinary field that uses scientific methods and processes to extract knowledge and insights from large amounts of structured and unstructured data. Data scientists identify rich data sources, clean the resulting merged data, and communicate their findings visually or verbally. They play an important role in today's data-driven world by making sense of the exponentially increasing volume, velocity, and variety of data that companies now have to manage. Their work helps organizations develop insights from their customers' data.