"Pixar Touch"[1] is fantastic. Highly recommended.

Also, the 2007 documentary about Pixar ("The Pixar Story"[2]) is well worth a watch - Extremely well done. There's a shorter, 23 minute mini-documantary about Pixar Shorts ("The Pixar Shorts, A Short History"[3]) that I also enjoyed.

[1]: http://www.amazon.com/The-Pixar-Touch-Making-Company/dp/1400... and http://www.pixartouchbook.com/

[2]: http://www.imdb.com/title/tt1059955/

[3]: http://www.imdb.com/title/tt1164983/