diff --git a/docs/dev/documentation.md b/docs/dev/documentation.md
index f23ab0bcc..70cf81297 100644
--- a/docs/dev/documentation.md
+++ b/docs/dev/documentation.md
@@ -53,4 +53,4 @@ The title of the PR will be used as the first line of that combined commit messa
 
 The first comment within the commit will be used as the message body.
 
-See [dev intro](intro.html#commit-messages)  for more details.
+See [developer intro](intro.html#commit-messages) for more details.
diff --git a/pypdf/_page_labels.py b/pypdf/_page_labels.py
index 1bedc003a..0dce8ec75 100644
--- a/pypdf/_page_labels.py
+++ b/pypdf/_page_labels.py
@@ -125,7 +125,7 @@ def number2lowercase_letter(number: int) -> str:
 
 def get_label_from_nums(dictionary_object: DictionaryObject, index: int) -> str:
     # [Nums] shall be an array of the form
-    #   [ key 1 value 1 key 2 value 2 ... key n value n ]
+    #   [ key_1 value_1 key_2 value_2 ... key_n value_n ]
     # where each key_i is an integer and the corresponding
     # value_i shall be the object associated with that key.
     # The keys shall be sorted in numerical order,
diff --git a/pypdf/_writer.py b/pypdf/_writer.py
index 4d4cca329..308c2e9c8 100644
--- a/pypdf/_writer.py
+++ b/pypdf/_writer.py
@@ -3132,16 +3132,16 @@ def set_page_label(
 
         Page indexes must be given starting from 0.
         Labels must have a style, a prefix or both.
-        If to a range is not assigned any page label a decimal label starting from 1 is applied.
+        If a range is not assigned any page label a decimal label starting from 1 is applied.
 
         Args:
             page_index_from: page index of the beginning of the range starting from 0
             page_index_to: page index of the beginning of the range starting from 0
             style: The numbering style to be used for the numeric portion of each page label:
 
-                       * ``/D`` Decimal arabic numerals
-                       * ``/R`` Uppercase roman numerals
-                       * ``/r`` Lowercase roman numerals
+                       * ``/D`` Decimal Arabic numerals
+                       * ``/R`` Uppercase Roman numerals
+                       * ``/r`` Lowercase Roman numerals
                        * ``/A`` Uppercase letters (A to Z for the first 26 pages,
                          AA to ZZ for the next 26, and so on)
                        * ``/a`` Lowercase letters (a to z for the first 26 pages,
@@ -3180,18 +3180,17 @@ def _set_page_label(
         """
         Set a page label to a range of pages.
 
-        Page indexes must be given
-        starting from 0. Labels must have a style, a prefix or both. If to a
-        range is not assigned any page label a decimal label starting from 1 is
-        applied.
+        Page indexes must be given starting from 0.
+        Labels must have a style, a prefix or both.
+        If a range is not assigned any page label a decimal label starting from 1 is applied.
 
         Args:
             page_index_from: page index of the beginning of the range starting from 0
             page_index_to: page index of the beginning of the range starting from 0
             style:  The numbering style to be used for the numeric portion of each page label:
-                        /D Decimal arabic numerals
-                        /R Uppercase roman numerals
-                        /r Lowercase roman numerals
+                        /D Decimal Arabic numerals
+                        /R Uppercase Roman numerals
+                        /r Lowercase Roman numerals
                         /A Uppercase letters (A to Z for the first 26 pages,
                            AA to ZZ for the next 26, and so on)
                         /a Lowercase letters (a to z for the first 26 pages,