This document provides an introduction to HTML. It defines WWW as the World Wide Web and URL as a Uniform Resource Locator, the web address for a webpage. It states that HTML is the code written in tags that is used to create web pages and structure the different parts of a webpage. It lists common HTML tags like <html>, <head>, <title>, <body>, and <h1> and explains what each tag is used for. It also explains that HTML code is written in Notepad and saved with a .html file extension in order to display the web page.