While in Baltimore, we went to the American Visionary Art Museum. They have an excellent book store/gift shop called Sideshow. The owner is so fun and nice.
We purchased 5 books we'd like to recommend:
Cine Mexicano: the graphics and illustrations are so worth it!
Crop Circles by the Alexanders. You cannot believe these images.
Hundertwasser Architecture : kinda wacky stuff, but inspiring.
H.C. Westermann: and here's something we found out from the book: He was close to Donald Judd and bought a house in Marfa in the last 70's. We are on a quest to find the house he purchased.