Marcel Duchamp (the dadda of Dada) today. (Which reminds me of Beatrice Wood–Mama of Dada, who I’ve mentioned here before.) Especially this work:

Mostly because I watched a documentary called Painters Painting which is about modern, abstract art, and some of the artists mention Duchamp as an influence, or at least someone who interested them (Rauschenberg and Johns in particular).
Now, I’m thinking of doing a couple of screenprints based on his bicycle Wheel (above). I’ve got one pretty well worked out.