Back Matter


Ancillary or supporting material that is not included as part of the main textual content of a book but that follows the body of material that composes the book. Back Matter, for example, might include: appendices, glossaries, and bibliographic reference lists.


While ancillary material, such as appendices, may follow the entire contents of a book, a publisher may prefer that such ancillary material follow the content of the book component where it is referenced. The NCBI Book DTD has been designed so that ancillary material may be included in the back matter of a <book> or <book-part> element.

Conversion Note: The <sec> element can be used within the Back Matter <back> to tag material that has not been explicitly named as one of the other back matter components, that is, it is not named as an appendix, an acknowledgment, a glossary, etc. For example, tables are frequently placed in the back matter, with no other designation than a label such as “Table 6”, or a title such as “Epochs of Geologic Time”.

Related Elements

A book <book> may be divided into four parts:

  1. the <book-meta> (the book metadata);
  2. the <book-front> (textual material that precedes the actual contents of a book, for example, author biographical information or a preface);
  3. the <body> (textual and graphical content of the book); and
  4. any <back> (ancillary information such as a glossary, reference list, or appendix).

Model Information

Content Model

<!ELEMENT  back         %back-model;                                 >


The following, in order:

This element may be contained in:

<body> Body of the Book; <book> Book; <book-part> Book Part; <collection> Collection

Tagged Example

<book-part id="bid.2" book-part-type="chapter" book-part-number="1">
<sec id="bid.3">
<p>Initially, GenBank was built and maintained at Los Alamos 
National Laboratory ...</p>
<ref id="bid.41">
<article-title>A common language for physical mapping 
of the human genome</article-title>
<pub-id pub-id-type="pmid">2781285</pub-id>


bookcollection.dtd / book.dtd