You can copy this piece of html code and paste to your product description (code view) edit with your own details - image name/location - image size - title & alt tags - url that the image should point to.
<a href="https://printingready.com"><img src="https://printingready.com/image/catalog/logo/The%20Laughing%20Professor%20home%20page%20logo.jpg" width="2044" height="1151" border="0" alt="Professional webmail Email" title="Professional webmail Email"></a>
