If you've ever been traveling on Highway 63 west from Hayward, odds are you have seen this graffiti that reads "Spooner Blows." It's been on the railway bridge for many years, and every so often someone breaks the law and refreshes the painting. It's criminal behavior, but that doesn't stop people from updating it.
A poster print is created using a professional laser printer on heavy, cover stock paper. The quality of the print and of the paper vary. Colors are placed on the paper with dots.
An artist's proof is matte photographic proof produced by a professional printer. Colors are continuous and have no dots.