This tutorial introduces the JSONiq language, which declaratively manipulates JSON data.
It was moved to an interactive, live tutorial that can be found here.
A user-friendly display of the tutorial is located here, if you just want to take a look with no setup: just ignore the instructions and scroll your way down.
You can also install RumbleDB to your laptop, or use it on a large cluster (Amazon EMR, Azure HDInsight, Google Cloud...). The documentation is here.
The queries in the notebook also can be run on a local installation of Zorba. However, Zorba is no longer officially maintained.