Once you have a good first overview of Xtext, in this section you will find some further materials you may wish to use to get you going.
It is important to note with all of these resources that Xtext has developed a lot over the past decade or so. As a result, some of the information in the resources above will not be completely up-to-date. However, the key principles are still valid. Slightly more up-to-date information can be found in the official Xtext documentation.