I needed a banner for my book
Composing Magic and the nice people in New Page's publicity department made this for me:

What's particularly interesting is that this isn't the way I would've made a banner. I was thinking, put a thumbnail of the whole cover on the left, and some text on the right. I've seen banners like that. But I think this one is better. While I'm not a professional designer, I am keenly interested in graphic design/layout theory. I've been making my own business cards, panel flyers, and other stuff for years; and I know it works, because I get traffic and compliments. (Oh, and there was the year I and three other people put together most of the high school yearbook.) It's just really cool to learn something new in this area.
Anyone else into graphic design? Particularly as applied to self-promotion?