diff --git a/docs/source/developers/guides/docs/doc_guidelines.rst b/docs/source/developers/guides/docs/doc_guidelines.rst
index 347ece7cd..c42f5abb5 100644
--- a/docs/source/developers/guides/docs/doc_guidelines.rst
+++ b/docs/source/developers/guides/docs/doc_guidelines.rst
@@ -62,6 +62,24 @@ Enumerated List
     2. Item 2
       a) item a
 
+Include another file
+--------------------
+
+To add contents of a document file inside another file, use ``.. include::``. This is usefull when a common information needs to be displayed in multiple files, whithout the use of a hyperlink.
+::
+
+ .. include:: config_common.rst
+
+..
+
+ ``Note:`` Do not put customized link targets, such as ``.. _my_link_taget:`` inside the file to be included. If you do, a warning for a duplicate label will be displayed during the documentation build process.
+
+Index file
+--------------------
+Index.rst files contain the ``.. toctree::`` tag. Files listed under that tag will have links to them displayed in the left side navigation area. If a documentation file does not wish to be accessbile from the navigation area, do not list it under the ``.. toctree::``.
+
+ ``Note:`` If a file is not listed under the ``.. toctree::`` it might generate a warning during the documentation build ``WARNING: document isn't included in any toctree``. To eliminate such warning, add the file to the ``exclude_patterns`` list in the ``docs/source/conf.py`` file. However, do not add a file to the ``exclude_patterns`` list if it contains a customized link target, such as ``.. _my_link_taget:``. This link target will not be visible to other files and a ``WARNING: undefined label:`` will be displayed during the documentation build.
+
 Hyperlinks -> Internal Links -> External Links
 ----------------------------------------------