## 1. Introduction

SGML-Tools is a suite of programs to help you write source documents that can be rendered as plain text, hypertext, or high-quality typeset markup suitable for printing books.

This document is the user's guide to the SGML-Tools document processing system. It contains more or less everything you need to know to set up SGML-Tools and write documents using it. See `example.sgml` for an example of an SGML document that you can use as a model for your own documents.