Here is a list of all related documentation pages:

Gaia 2.0 API Overview	This document is not meant to be an API reference, but rather a short and clear introduction to what you can do with Gaia, by showing the most useful classes and methods, as well as the way to use them in the way they are intended to
How to deal with very large datasets
Filtering queries	When doing a search on a DataSet using a View, you are allowed to use a filtering term
How to set up a lightweight fingerprinting system with Gaia in less than an hour	This tutorial will take you through the same steps I took when I was asked to see the feasibility of a lightweight fingerprinting system based on Gaia
Gaia 2.0 Tutorial	This page presents a short tutorial to start using Gaia and do some useful stuff