I'm reading Dan Sicko's book on Detroit techno at the moment. It's making me consider the design used by the Motor City's record labels. It's also making me listen to a lot of vintage Cybotron, Mayday, Model 500 and Reese.
The 2010 edition of Dan Sicko's excellent book can be purchased here:
Techno Rebels: The Renegades of Electronic Funk
Meantime, anyone unfamiliar with Juan Atkins' Metroplex, might want to start with the following album: 20 Years of Metroplex