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 Look also at [Presentations](https://github.com/orientechnologies/orientdb/wiki/Presentations) with video and slides introducing OrientDB.
 
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 ## Is OrientDB a Relational DBMS?
 
 No. OrientDB adheres to the [NoSQL](http://en.wikipedia.org/wiki/NoSQL) movement even though it supports a subset of [SQL](https://github.com/orientechnologies/orientdb/wiki/SQL) as query language. In this way it's easy to start using it without having to learn too much new stuff. OrientDB is a [Document Database](http://en.wikipedia.org/wiki/Document-oriented_database) but has the best features of other DBMSs. For example relationships are handled as in [Graph Databases](http://en.wikipedia.org/wiki/Graph_database).