This is official Amazon Web Services (AWS) documentation for Amazon Elasticsearch Service (Amazon ES) . This documentation is offered for free here as a Kindle book, or you can read it online or in PDF format at https://aws.amazon.com/documentation/elasticsearch-service/. Amazon ES is a managed service that makes it easy to deploy, operate, and scale Elasticsearch, a popular open-source search and analytics engine. Amazon ES also offers security options, high availability, data durability, and direct access to the Elasticsearch API. This guide describes how to get started with Amazon ES, explains key concepts, and provides step-by-step instructions that show you how to use the features.