In Listing 9.1, Fictitious Person element with subelements, the
following is shown:
---------------
<Person firstName="John" lastName="Doe" address1="123 Main Street"
   address2 = "''" city="Sometown" state="OH" zip="22222" phone="111-242-5512"
   <orders>
     <order id="111" itemid="2932" itemdesc="Super Foo Widget"
     </order>
   </orders>
</Person>
---------------

However, the "<Person..." and "<order..." tags are 
never closed: two closing angle-brackets (">") are missing.  
So a correct form would be:
---------------
<Person firstName="John" lastName="Doe" address1="123 Main Street"
   address2 = "''" city="Sometown" state="OH" zip="22222" phone="111-242-5512">
   <orders>
     <order id="111" itemid="2932" itemdesc="Super Foo Widget">
     </order>
   </orders>
</Person>
---------------


Here is a longer XML example from the MSDN at:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnxml/html/understxml.asp

<?xml version="1.0" encoding="iso-8859-1" ?>
<?xml-stylesheet href="orders.xsl"?>

<order id="ord123456">
  <customer id="cust0921">
    <first-name>Dare</first-name>
    <last-name>Obasanjo</last-name>
    <address>
      <street>One Microsoft Way</street>
      <city>Redmond</city>
      <state>WA</state>
      <zip>98052</zip>
    </address>
  </customer>
  <items>
    <compact-disc>
      <price>16.95</price>
      <artist>Nelly</artist>
      <title>Nellyville</title>
    </compact-disc>
    <compact-disc>
      <price>17.55</price>
       <artist>Baby D</artist>
       <title>Lil Chopper Toy</title>
    </compact-disc>
  </items>

  <!--  Always go the extra mile for the customer -->
  <special-instructions xmlns:html="http://www.w3.org/1999/xhtml/">
    <html:p>If customer is not available at the address then attempt
      leave package at one of the following locations listed in order of
      which should be attempted first
    <html:ol>
      <html:li>Next Door</html:li>
      <html:li>Front Desk</html:li>
      <html:li>On Doorstep</html:li>
    </html:ol>
    <html:b>Note</html:b> Remember to leave a note detailing where
      to pick up the package.
    </html:p>
  </special-instructions>
</order>