Professor Desouza provides a clear and useful introduction to the concept of big data, which is receiving increasing attention as a term but also lacks a commonly understood definition. In describing big data, Desouza writes, “Big data is an evolving concept that refers to the growth of data and how it is used to optimize business processes, create customer value, and mitigate risks.” Desouza also describes the differences in the use of big data in the public and private sectors.