DocBook is a markup language for technical documentation, originally intended for authoring technical documents, related to computer hardware and software but which can be used for any other sort of documentation.
One of the principal benefits of DocBook is that it enables its users to create document content in a presentation-neutral form that captures the logical structure of the content; that content can then be published in a variety of formats, including HTML, PDF, man pages and HTML Help, without requiring users to make any changes to the source.
