Top-level element for the NCBI Historical DTD. A “book” as defined in this DTD covers a variety of STM monographs and reference books, largely biomedical in subject, that may include books, pamphlets, compilations, and encyclopedias.


book-id Book Identifier
dtd-version Version of the 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 five parts:

  1. book metadata, that is, data about the book, such as the title and author (<book-meta>);
  2. metadata about the digital edition of a book, such the editor and date of transcription (<digital-edition-meta>);
  3. textual material that precedes the actual contents of a book, for example, author biographical information or a preface (<book-front>);
  4. the textual and graphical content of the book (<body> ); and
  5. ancillary information such as a glossary, reference list, or appendix that follows the body of the book (<back> ).

Model Information

Content Model

<!ELEMENT  book         %book-model;                                 >


The following, in order:

Tagged Example