MK12

MK12 is a design firm I discovered a few years ago.  They really make good use of negative space, line, and typography.  The work is simple, but effective.  Another reason I like them is because they, unlike many others, successfully translate their print aesthetic into the look of their video work.

 

Flowers

The Faint - Agenda Suicide (Banned by MTV)

It's pretty easy to tell that both pieces were created by the same group.  This is something I strive for in my personal work, and something that I think a lot of designers that cross platforms forget about.  Your work must look like you made it.  It must have continuity.