diff --git a/Doc/tutorial/introduction.rst b/Doc/tutorial/introduction.rst
--- a/Doc/tutorial/introduction.rst
+++ b/Doc/tutorial/introduction.rst
@@ -253,6 +253,26 @@
    This is a rather long string containing\n\
    several lines of text much as you would do in C.
 
+There is one subtle aspect to raw strings that is of special concern to Windows
+programmers:  a raw string may not end in an odd number of ``\`` characters.
+This is because the interpreter sees this as an escaped quote character, and so
+it does not recognize it as the end of the string::
+
+   >>> fn = r'C:\this\will\not\work\'
+     File "<stdin>", line 1
+       fn = r'C:\this\will\not\work\'
+                                    ^
+   SyntaxError: EOL while scanning string literal
+
+There are several workarounds for this.  One is to use regular strings and
+double the backslashes::
+
+   >>> fn = 'C:\\this\\will\\work\\'
+
+Another is to add a blank character before the quote and then remove it::
+
+   >>> fn = r'C:\this\will\work\ '.strip()
+
 Strings can be concatenated (glued together) with the ``+`` operator, and
 repeated with ``*``::