# DocBook 5.2

Source: https://xmlvalid.com/schemas/docbook-5.2

> Books, articles and reference documentation written in DocBook.

DocBook is a vocabulary for technical documentation, published as books, help systems and websites. Version 5 is defined in RelaxNG.

- Type: RelaxNG
- Version: 5.2
- Namespace: `http://docbook.org/ns/docbook`
- Root element: `book, article, chapter, …`
- Publisher: OASIS DocBook TC (DocBook schema license), source: https://docs.oasis-open.org/docbook/docbook/v5.2/os/
- Validate against it: https://xmlvalid.com/validate?schema=docbook-5.2

## Notes

- The schema also embeds a few Schematron rules; only the RelaxNG grammar is checked here.