Art Inc. is a good read for artists and aspiring artists who want to build a sustainable business out of their creative talents and skills. I strongly recommend it as a tool to get you down to business.
The Old Magazine Store is full to the brim with all kinds of old publications - from magazines, newspapers, poster, et. al.
If you love Christoper Nolan's film trilogy, I recommend that you read Doug Moench's Batman series. Comichead will school you on it with his hilarious video!