Top-level element for the Book Tag Set. A “book” as defined in this Tag Set covers a variety of STM monographs and reference books, largely biomedical in subject, that may include previously published works, new works written for NCBI, compilations, and internal regulations and procedures of NLM.


book-id Book Identifier
dtd-version Version of the Tag Set (DTD)
xml:lang Language
xmlns:mml MathML Namespace Declaration
xmlns:xlink XLink Namespace Declaration
xmlns:xsi XML Schema Namespace Declaration

Related Elements

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

  1. the <book-meta> (the book metadata or header information);
  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).

Content Model

<!ELEMENT book          %book-model;                                 >

Expanded Content Model

(book-meta, book-front?, body?, back?)


The following, in order:

This top-level element may not be contained in any other elements.


<book dtd-version="3.0" xmlns:xlink="http://www.w3.org/1999/xlink"