DOKBOOK is written in SGML. SGML is a set of rules/gramer how to write the tags in the document. In adittion its a diconary, that tells what the tags do. There are diffrents dictionary to SGML. The one i DOKBOOK, with this document is about, and an other one i HTML. In the later versions, it's possible to use XML instead of SGML. XML is intended to replace SGML. XML is simpler than SGML, and therefor easiar to make, and make programs that use it. Dokbook 4 > and HTML 4.01 can be written i XML (note: HTML 4.01 in XML, is called xHTML 1.0) Unlike WISIWIG editors, like Word Perfect 6>, and Microsoft Word, where you define how the document is going to look like. Everything from font type, to font color &c. In DOKBOOK the content is separated form presentation. The author, insted of defining what type of font to use, he/she defines chapters, title of the chapter, paragraph &c. The layout is defined in style sheets, and is applied to the text when it is rendered. The documents can be rendered in to multiple formats, like HTML, pdf, rtf, ps, plain text. Basicly DOCBOOK is plain text. Therefor any text editor will do. A pure texteditor damands more of a users, since it will have to remember all the tags. There are a lot of editors that have syntax higlighting. This makes it easyer to heed misstakes with syntax higlighting. (L)GPL text editors with syntax higlighting Glimmer Vim emacs jEdit jade Saxon nedit