Some specific areas of Iris may require further explanation or a deep dive into additional detail above and beyond that offered by the :ref:`User Guide <user_guide_introduction>`.
This section provides a collection of additional material on focused topics that may be of interest to the more advanced or curious user.
Hint
If you wish further documentation on any specific topics or areas of Iris that are missing, then please let us know by raising a GitHub Documentation Issue on SciTools/Iris.