Example - Book

<?xml version="1.0"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<book>
  <bookinfo>
    <title>Sample Book</title>
  </bookinfo>
  <chapter> 
    <title>First Chapter</title>
    <sect1>
      <title>First Section</title>
      <para>This is a paragraph.</para>
    </sect1>
    <sect1>...</sect1>
  </chapter>
  <chapter>...</chapter>
  <chapter>...</chapter>
  <chapter>...</chapter>
  <appendix>...</appendix>
  <appendix>...</appendix>
</book>