These are amazing!
For those of you who are fans of Dexter here is the ultimate in stylish and amazing fan collectibles, you can buy the set from Showtime. Posters for each season 1-6 are impeccably designed by Ty Mattson and screen printed by Vahalla Studios. Check out his site and the sketches and development of the posters from the previous link, as well as an animated intro to the show created with his artwork. Of course my favorite poster is for the best season of Dexter, season 4: