The IMG element allows an image document to be inserted within an
HTML document. The purpose is to allow pictures to be included
within a document and presented with the text, as opposed to
having hypertext links that retrieve and display images in a
separate viewing window.
The IMG element is empty, meaning there is no closing
</IMG>. It has three attributes:
<IMG SRC="image.gif" ALT="This would have been an image">

Here's an image






If you're going to use little images embedded in your text documents, try to use the same one. Most web browsers will request the image from the server only once and keep it in memory, thus saving network bandwidth and speeding the document to your audience.
Images can be included within a hypertext anchor: thus you can make an image icon behave as a button to access other documents.
Note: At present you can only inline GIF and JPEG images and X-bitmaps (standard extensions are .gif, .xbm, .xpm) using NCSA Mosaic and Netscape.
Note: <IMG> element can not be used to include other HTML text within a given document.