This document provides an introduction to HTML and creating basic HTML files. It explains that HTML provides the structure of web pages, while CSS handles presentation and JavaScript provides interactivity. The document then guides the reader through creating a simple HTML file with the text "I am master of the internet!" and viewing it locally in a web browser. It explains that browsers are used to open HTML files, just as other applications open other file types. Finally, it provides a brief overview of some popular web browsers and why there are multiple options available.