Here's something that I bought a long time ago, the Art of Pixar postcards.
The art comes from the shorts and movies up all the way to Cars. There are a few pieces not included in the "art of" books, such as the Japanese version of the Monsters Inc and The Incredibles posters.
It was out in 2005. I'm pretty amazed it's not out of stock yet.
Visit Amazon to check out more reviews.
If you buy the links, I get a little commission that helps me get more books to feature.