There are two tutorials for you to get a firstlook into some features of ArangoDB. Everything online and live, you don’t have to install anything. Just choose your option and follow the instructions.
ArangoDB offers among other options a shell called ArangoSH. On this page you can play around with ArangoDB using a web interface to ArangoSH.
AQL is a declarative query language similar to SQL and offers both simple and complex, nested queries. It can be used to retrieve data that is stored in ArangoDB.