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Books
Documentation for the IOP Publishing specific implementation of BITS 2.0 for book content
Book Meta
<book-meta >is a mandatory element for all books as a container for the book level metadata.
Subject Classification
All books must contain a <subj-group> element containing subject classification information.

Books
Documentation for the IOP Publishing specific implementation of BITS 2.0 for book content
- Root element
  The root element for a book is a <book> element.
- Book Meta
  <book-meta >is a mandatory element for all books as a container for the book level metadata.
  - Book ID
    All books must contain a <book-id> element containing the book level DOI
  - Book Title
    Capture the book title in a <book-title> element inside a <book-title-group> element.
  - Subject Classification
    All books must contain a <subj-group> element containing subject classification information.
  - Contributors
    Contributor information for a book is captured in <contrib-group> elements.
  - Publication Date
    A Publication date for the book must be captured in a <pub-date> element
  - ISSN
    Capture ISSN information in a <issn> element
  - ISBN
    Capture ISBN information in a <isbn> element
  - Publisher
    Capture Publisher information in a <publisher> element.
  - Cover Files
    Capture cover file images in <supplementary-material> elements
  - Supplementary Data
    Capture book level supplementary data in a <supplementary-material> element.
  - Copyright and License
    Capture copyright and license information inside a <permissions> element.
  - Self URI
    Capture the file names of the PDF, EPUB and MOBI representations of the book in <self-uri> elements.
  - Preview PDF
    Capture the filename of the PDF preview file in a self-uri element.
  - Abstract
    Capture Abstracts in an <abstract> element.
  - Counts
    Capture the page count of the book using a <book-page-count > element as a child of <counts>.
  - Custom Metadata
    Capture Custom Metadata in a < custom-meta-group> element.
  - Notes
    Capture notes in a <notes> element.
- Front Matter
  Capture the front matter information for a book inside a <front-matter> element.
- Chapters
  All of a books chapters must be captured in seperate <book-part > elements within a <book-body> element.
- Back Matter
  Capture the book back matter inside a <book-back> element.
- Version and Change Log

Subject Classification

All books must contain a <subj-group> element containing subject classification information.

The <subj-group> element must have a a @subj-group-type attribute with the value of ebooks. The <subj-group> element must contain at least one child <compound-subject> element.

Each <compound-subject> must have two child <compound-subject-part> elements. One contains the subject code and must have a @content-type attribute with the value code and the other contains the display name for the subject and must have a @content-type attribute with the value subject

The allowed values of for the codes and subjects are as below:

Table 1. Allowed Values
`@content-type`=code	`@content-type`=subject
Optic	Optics and photonics
Mater	Materials
Eng	Engineering
Env	Environment and energy
Edu	Education and outreach
Cult	Culture, history and society
Astro	Astronomy and astrophysics
Maths	Mathematics and computation
Quant	Quantum science
Class	Classical physics
CMP	Condensed matter
AtMo	Atomic and molecular physics
Plasm	Plasmas
PNP	Particle and nuclear physics
MedPh	Medical physics and biophysics
Bio	Biomedical engineering
Inst	Instrumentation and measurement

Example

<subj-group subj-group-type="ebooks">
  <compound-subject>
    <compound-subject-part content-type="code">Optic</compound-subject-part>
    <compound-subject-part content-type="subject">Optics and
  photonics</compound-subject-part>
  </compound-subject>
</subj-group>