I bought a book of Matsumi Kanemitsu lithographs years ago, in college. It was a retrospective of his prints from 1960-1990. Im not sure what it was about his work that I found fascinating- perhaps the way he used litho washes, or the sly humor in the illustrations. In any case, I periodically look at the book again for inspiration. Here is a video on his life and work that you may enjoy.

(Image courtesty of Art Is America)