Would you like to do something like:

Or maybe you prefer it another way, like:
They look the same, don't they? However they are a bit different in the making. Let's see how...
The first way to do such thing is to use the <button> tag:
<button>
<img src="http://www.w3.org/html/logo/downloads/HTML5_Logo_32.png" />
</button>
The image is just like any text we usually put inside the tag.