Dutch painter, an important contributor to the De Stijl art movement (neoplasticism: pure abstraction and universality by a reduction to the essentials of form and colour). He is best known for his non-representational paintings (which he called compositions), consisting of rectangular forms of red, yellow, blue, or black.

Composition with Yellow, Blue and Red

In Switzerland you often see concrete trucks with a “Mondrian” paint (he would probably have liked that), so to me Mondrian equals concrete truck!

http://en.wikipedia.org/wiki/Piet_Mondrian