diff --git a/fastkml/base.py b/fastkml/base.py
index 0e3ce601..048fbf91 100644
--- a/fastkml/base.py
+++ b/fastkml/base.py
@@ -79,14 +79,24 @@ def etree_element(
         return element
 
     def from_element(self, element: Element) -> None:
-        """Load the KML Object from an Element."""
+        """
+        Load the KML Object from an Element.
+
+        This implementation is deprecated and will be replaced by class_from_element
+        making it a classmethod.
+        """
         if f"{self.ns}{self.__name__}" != element.tag:
             raise TypeError("Call of abstract base class, subclasses implement this!")
         for mapping in self.kml_object_mapping:
             mapping["from_kml"](self, element, **mapping)
 
     def from_string(self, xml_string: str) -> None:
-        """Load the KML Object from serialized xml."""
+        """
+        Load the KML Object from serialized xml.
+
+        This implementation is deprecated and will be replaced by class_from_string
+        making it a classmethod.
+        """
         self.from_element(
             cast(Element, config.etree.XML(xml_string))  # type: ignore[attr-defined]
         )
@@ -266,6 +276,7 @@ def _get_kwargs(
         element: Element,
         strict: bool,
     ) -> Dict[str, Any]:
+        """Get the keyword arguments to build the object from an element."""
         return {
             "id": cls._get_id(element=element, strict=strict),
             "target_id": cls._get_target_id(element=element, strict=strict),
diff --git a/fastkml/geometry.py b/fastkml/geometry.py
index 97bb097b..837deb8d 100644
--- a/fastkml/geometry.py
+++ b/fastkml/geometry.py
@@ -49,7 +49,7 @@
 
 
 class Geometry(_BaseObject):
-    """ """
+    """Deprecated: to be replaced by the subclasses of _Geometry."""
 
     geometry = None
     extrude = False
diff --git a/tests/geometries/polygon_test.py b/tests/geometries/polygon_test.py
index 6003870f..5274d233 100644
--- a/tests/geometries/polygon_test.py
+++ b/tests/geometries/polygon_test.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2021  Christian Ledermann
+# Copyright (C) 2023 Christian Ledermann
 #
 # This library is free software; you can redistribute it and/or modify it under
 # the terms of the GNU Lesser General Public License as published by the Free