This tutorial explains how to make an image into a clickable link using HTML. To get an actual image, you must make one yourself with an image editor, or ask a someone from this site to supply you with one.
After you have an image prepared, you must upload it to your File Manager in the control panel and click it to get the direct link. You will need this link for the actual coding in the next section.
With the combination of two codes, you can easily make a clickable banner. Start off with a simple link code as follows..
<a href="Place URL of page to be linked, here">
After the link code put in your image code like this...
<img src="Place the image code that you got from your File Manager here">
And finally, add this code after the previous two.
In all, it should look like this....
<a href="PAGE LINK"><img src="IMAGE LINK"></a>
Keep in mind that this is only the way I do it. I'm sure there are several other ways to accomplish this. In any case, good luck,