paulwpxp on "[Theme: Cuttlefish] Logo?"

Put this in Custom CSS section of Jetpack plugin. Change image url to yours.

#blog-info h1 a:before {
	content: "";
	display: block; width: 48px; height: 48px;
	position: absolute; top: -2px; left: -60px;
	background-image: url("http://dummyimage.com/48x48/ff0000/ffffff.png");
	background-size: cover;
}
#blog-info h1, #descr { position: relative; margin-left: 60px; }