These posters from Sonnenzimmer completely blow me away. They're clever and quiet and beautiful and make terrific use of space and typography. Based in Chicago, Sonnenzimmer is the design partnership of Nick Butcher and Nadine Nakanishi.
Their client list includes some of my favourite bands, and most posters are available at their online store for roughly $40.
And in case you were wondering, this is what a room full of Sonnenzimmer looks like. All pictures from their website.