This document provides an overview of Amazon Elastic MapReduce (EMR), a service that makes it easy to process large amounts of data using the Hadoop framework. It discusses how EMR allows users to launch Hadoop clusters in minutes, integrate with other AWS services for storage and databases, customize clusters using various Hadoop applications and design patterns, and pay only for the resources used. The document aims to demonstrate how EMR provides an easy, fast, secure and cost-effective way to run Hadoop in the cloud.