--- a/longdesc1/longdesc.html	Mon Jan 06 14:49:11 2014 -0500
+++ b/longdesc1/longdesc.html	Thu Jan 09 10:13:38 2014 -0500
@@ -433,6 +433,11 @@
     </section>
     <section id="intro" class="introductory">
       <h1>Introduction</h1>
+
+      <p>The <code>longdesc</code> attribute gives authors a mechanism for referencing a long text 
+        description for images which cannot be adequately described using shorter description 
+        mechanisms, such as the <code>alt</code> attribute.</p>
+
       <p>HTML 4 provided a <code>longdesc</code> attribute for the <code>img</code>
         element that enabled a machine-discoverable description of an image to
         be linked to the image. This extension specification defines a <code>longdesc</code>
@@ -845,6 +850,8 @@
           <h3 id="change-second">Between the current draft and the <a href="http://www.w3.org/TR/2013/WD-html-longdesc-20130716/">Last Call Working Draft</a></h3>
           <p>Editorial changes include:</p>
           <ul>
+            <li>Added text to the "Introduction" section that more clearly defines 
+              the <code>longdesc</code> attribute.</li>
             <li>Added more precise references to relevant sections of ATAG in 
               the "Implementation" section.</li>
             <li>Added text to clarify the use of longdesc in conjunction with