The document discusses how to create different types of links in HTML, including internal anchors on a page, links to other pages or websites, links to images, and adding sound. It provides the syntax for linking to anchors using <A NAME> and <A HREF="#anchor">, linking to other pages or sites using <A HREF="filename"> or <A HREF="http://">, linking to images using <A HREF="image.jpg"><img></A>, and adding background sound using <BGSOUND SRC="sound.mp3">.