David Bailey:  

On the theme of ‘multiple sharing’ (as with ‘Mountain Biker’), are you familiar with the work of Raoul Raba in Zoo Mathématique? He has occasional examples. As a concept, there are not too many artists using this idea in their tessellation work. The premise of ‘economy’ is a pleasing one.

Francine:

Hi again David,
Did not know of Raoul Raba’s tessellations. Only the kangaroos on the web. So, no, I cannot examine any of his space sharing tricks within a tessellation. I have done many. One blog post “Sharing areas within a tessellation — dual purpose space”, dedicated to the topic, and many more tessellations since. I’ll send you a few links if you want to explore further. Or do a search on my blog.
Cheers (anagram of Escher!)

Below are the few images that I was able to find of Raoul Raba’s tessellations.

If any of you have come across his area-sharing tessellations, please send me an image. Thanks.

Pavages de Raoul Raba

Pavages de Raoul Raba

Pavages de Raoul Raba

Pavages de Raoul Raba

Pavages de Raoul Raba

Pavages de Raoul Raba

Cheers!