We first saw these big images side by side at a client's house. After that, we saw them behind the counter at Kid-O. We didn't know where they were from, but they stuck in our mind. They were simple, elegant and full of goodwill.
With a bit of research we discovered that they were the work of Enzo Mari (b. 1932), an Italian designer with a great legacy, who has become known for even more as "a writer, teacher, artist and designer of products, furniture and puzzle games."