This document summarizes an article about data scientists and their growing importance. It defines data science as the study of extracting knowledge from data using techniques from many fields, including mathematics, statistics, programming, and data engineering. A data scientist must have expertise in business, statistics, programming, databases, visualization, and communication. The document also notes that demand for data scientists is predicted to increase 28% by 2020 according to IBM, and that managers in India should consider training current employees in data science to meet this growing need for these important roles.