A clickable image is any image that has instructions embedded in it so that clicking on it initiates some kind of action or result. On a web page, a clickable image is any image that has a URL or more than one URL embedded in it (i.e. hidden behind it). This can be accomplished simply by including an <A HREF> anchor tag in an HTML <IMG> (image) tag. Embedding more than one URL in an image requires constructing an image map.