Each document must have one and only one TITLE tag. This tag tells the title of the document. It is usually displayed at the top of the browser window, but is also used to label a bookmark entry for the document, and as a caption in search engine results. It can only have text and entities, no markup of any kind. Make sure the TITLE tag is also useful out of it's normal context. It should be descriptive enough to tell what your page is when it is bookmarked. Although you can use entities inside TITLE, not all browsers can handle this properly. We can't show an example of this tag here, but if you look at the top of your screen it should say TITLE, that is what this tag does.