obit in the Times, including this:
He preached clarity and coherence and practiced them with intense
discipline in everything he turned out, whether kitchenware, public
signage, books or home interiors.
And I remember my mother bought a set of those Heller stacking dishes back in the 1970s. They were kind of cool and definitely stacked really well. The only problem was the liquid in the cups would dribble down the handles. (Maybe that's why you don't see them much anymore.)