Are you a developer with a background in machine learning and statistics who is feeling limited by the current slow and small data machine learning tools? Then this is the book for you! In this book, you will create scalable machine learning applications to power a modern data-driven business using Spark. We assume that you already know about machine learning concepts and algorithms and have Spark up and running (whether on a cluster or locally), as well as having basic knowledge of the various libraries contained in Spark.