How to add a logo on your blog?

Do you want to add a logo on your blog, for example, the logo on my blog.
There are many ways to do this job, but here is the simple way to do this.
Instead of putting the logo and description in the header widget, I put the logo as well as description in a HTML/Javascript gadget. Below is the code for the gadget.

<table><tr>
<td><br/>
<img src="$LOGO_Link" align="middle"/>
</td>
<td valign="top" align="left">
<h1>$TITLE</h1>
$DESCRIPTION
</td>
</tr></table>

Clear the Description text in the header gadget, Replace the $LOGO_Link, $TITLE, $DESCRIPTION in the HTML/Javascript gadget and Rearrange your layout such that the gadget is just under the header gadget.