diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 86df7b5..428cb08 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -439,8 +439,8 @@
 
 For loop ~
 
-The |:for| loop executes commands for each item in a list.  A variable is set
-to each item in the list in sequence.  Example: >
+The |:for| loop executes commands for each item in a List, String or Blob.
+A variable is set to each item in sequence.  Example with a List: >
 	:for item in mylist
 	:   call Doit(item)
 	:endfor
@@ -457,7 +457,7 @@
 function will be a simpler method than a for loop.
 
 Just like the |:let| command, |:for| also accepts a list of variables.  This
-requires the argument to be a list of lists. >
+requires the argument to be a List of Lists. >
 	:for [lnum, col] in [[1, 3], [2, 8], [3, 0]]
 	:   call Doit(lnum, col)
 	:endfor
@@ -473,6 +473,14 @@
 	:   endif
 	:endfor
 
+For a Blob one byte at a time is used.
+
+For a String one character, including any composing characters, is used as a
+String.  Example: >
+	for c in text
+	  echo 'This character is ' .. c
+	endfor
+
 
 List functions ~
 						*E714*