Useful links and resources to help use XNAT
How To Use XNAT - Official XNAT documentation and guides
Downloading from XNAT - Official downloading guides
Uploading to XNAT - Official uploading guides
XNATpy - The recommended XNAT Python client
Understanding User Roles and Permissions
It is important to understand the default roles within XNAT, and what each role offers a user. See Understanding User Roles and Permissions for details.
Understanding the XNAT Data Model
See the image below for a diagram explaining the XNAT Data Model. For further details, see Understanding the XNAT Data Model.