arangodb/Documentation/Books/Users

!BOOK ArangoDB VERSION_NUMBER Documentation

Welcome to the ArangoDB documentation!

The documentation introduces ArangoDB for you as a user, developer and administrator and describes all of its functions in detail. 

ArangoDB is a multi-model, open-source database with flexible data models for documents, graphs, and key-values. Build high performance applications using a convenient SQL-like query language or JavaScript extensions. Use ACID transactions if you require them. Scale horizontally and vertically with a few mouse clicks.

Key features include:

* **Schema-free schemata** let you combine the space efficiency of MySQL with the performance power of NoSQL
* Use ArangoDB as an **application server** and fuse your application and database together for maximal throughput
* JavaScript for all: **no language zoo**, you can use one language from your browser to your back-end
* ArangoDB is **multi-threaded** - exploit the power of all your cores
* **Flexible data modeling**: model your data as combination of key-value pairs, documents or graphs - perfect for social relations
* Free **index choice**: use the correct index for your problem, be it a skip list or a fulltext search
* Configurable **durability**: let the application decide if it needs more durability or more performance
* No-nonsense storage: ArangoDB uses all of the power of **modern storage hardware**, like SSD and large caches
* **Powerful query language** (AQL) to retrieve and modify data 
* **Transactions**: run queries on multiple documents or collections with optional transactional consistency and isolation
* **Replication** and **Sharding**: set up the database in a master-slave configuration or spread bigger datasets across multiple servers
* It is **open source** (Apache License 2.0)

In this documentation you can inform yourself about all the functions, features and programs ArangoDB provides for you.

You can also go to our [cookbook](https://docs.arangodb.com/cookbook) and look through some recipes to learn more about ArangoDB specific problems and solutions.

!SUBSECTION Community

If you have questions regarding ArangoDB, Foxx, drivers, or this documentation don't hesitate to contact us on:

- [Github](https://github.com/arangodb/arangodb/issues) for issues and misbehavior or [pull requests](https://www.arangodb.com/community/)
- [Google groups](https://groups.google.com/forum/?hl=de#!forum/arangodb) for discussions about ArangoDB in general or to announce your new Foxx App
- [Stackoverflow](http://stackoverflow.com/questions/tagged/arangodb) for questions about AQL, usage scenarios etc.

Please describe:

- the environment you run ArangoDB in
- the ArangoDB version you use
- whether you're using Foxx
- the client you're using
- which parts of the Documentation you're working with (link)
- what you expect to happen
- whats actually happening

We will respond as soon as possible.