No padding around text-wrapped images

Whenever I align an image to have text wrap around it the text bumps right up against the image. Ideally, I would like some padding around the image because it kind of looks ugly. I’m new to this, so I’m sure it’s an easy fix I just don’t know. I’m using the default WordPress theme. Link to my site if you want to take a look: http://blog.kingbinary.com

Thanks in advance!