Before I dematerialized (code for get rid off stuff

), I had a full-size print of Relativity which for many years I kept framed & hanging on the wall opposite the toilet.

This in deference to the Ladies and allowing them twice the opportunities to view it as the Men and by not hanging it behind the stool so as to distract Men from focussing on what must needs be focussed on by Men in such circumstance.
Now in thinking of so many of Escher's works, I am hard pressed to name any as favorite. Two excellent books I've owned that I recommend:
M.C. Escher - Visions of Symmetry by Doris Schattschneider
World of Escher Books
and
(I think this was it?) Escher: The Complete Graphic Work by J. L. Locher, M. C. Escher
050027696X: "Escher : The Complete Graphic Work" by J. L. Locher, M. C. Escher @ BookFinder.com
Alas I dematerialized them so no going to check for a favorite.
