A bookmap is a specialization of a DITA map and is meant to be used when you intend to publish your documents in a book format. It contains structure and metadata, but no content. It is especially designed to create output in book-style formation and therefore includes the following major structures:

• title
• bookmeta (owners, authors, publishing data,…)
• front matter (acknowledgements, definitions, abbrevations,…)
• chapters and parts
• appendix topics
• back matter (index, notices, lists,…)
• relationship tables