front matter
This book is a true collaboration, a team effort between two very different people who share a love of data, new technology, and solving customer problems. We (Danil and Lynda) worked together at a data, analytics, and cloud IT services company for five years, where we partnered up to develop a cloud analytics practice. Danil, with his years of Hadoop experience, brought the technical chops, and Lynda brought the business perspective. We realized early on that both were needed to solve real-world data problems, and over time, Danil became more business-oriented and Lynda became knowledgeable enough about the cloud and data to contribute and even sometimes challenge Danil.