diff --git a/README.rst b/README.rst
index 0215a7b..47d8312 100644
--- a/README.rst
+++ b/README.rst
@@ -926,6 +926,8 @@ A short form starting with ``In`` indicates a block property:
 
 * ``InBasicLatin``, the 'BasicLatin' block (``Block=BasicLatin``).
 
+The  (`Unicode properties <https://www.unicode.org/Public/16.0.0/ucd/PropList.txt>`_), (`scripts <https://www.unicode.org/Public/16.0.0/ucd/Scripts.txt>`_), and (`blocks <https://www.unicode.org/Public/16.0.0/ucd/Blocks.txt>`_) documentation lists properties that you can use with this syntax and the characters that have them.
+
 POSIX character classes
 ^^^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/regex_3/regex.py b/regex_3/regex.py
index e77795e..14f68c3 100644
--- a/regex_3/regex.py
+++ b/regex_3/regex.py
@@ -144,7 +144,8 @@
     \n              Matches the newline character.
     \N{name}        Matches the named character.
     \p{name=value}  Matches the character if its property has the specified
-                    value.
+                    value.  A list of unicode properties and the characters that 
+                    have them is available here:  https://www.unicode.org/Public/16.0.0/ucd/PropList.txt
     \P{name=value}  Matches the character if its property hasn't the specified
                     value.
     \r              Matches the carriage-return character.