Are you
an author who is writing a lot of books and papers and wanted to convert
you writings to different formats like html, pdf, etc for publishing?
If so, you can use the docbook DTD for authoring.
_______________________________________________
_______________________________________________
It
is a grammar that is well suited for authors. You can get the docbook
schema for free download and use it for creating such XML documents
which have your content in a format that can be converted to different
forms easily.
Oasis the
official docbook site has the XML DTD and the SGML DTD for the docbook.
You can download them from that website.
A simple
search on the internet for the docbook DTD or the schema would lead
you to their site and other mirror sites from where you can download
them. A separate committee is there to maintain the docbook DTD and
schema.
There are
many free tools available for using the docbook schema and even stylesheets
that can used for publishing the content in different formats.