The art movement De Stijl calls upon pure simplicity. It ranges from 1917-1931 and clear influence of the geometrics of Art Deco can be seen. It is an abstract movement i.e. use of shapes, colour and form to create art.
Piet Mondrian was the movements leading figure. His work consisted of lines, rectangles and squares painted in the primary colours on a white background.
Theo van Doesburg was the movements founder if you will, promoting the movement as it started to be noticed through the De Stijl magazine. His interpretation of the abstraction of reality still incorporates the grid scenario but uses a wider variety of colours, not so vivid. He also uses angles in his work and other works do not portray a grid at all but rather geometric shapes floating on the canvas
George Vantongerloo was another founder of the movement. He was a painter and a sculptor. His work involved grids and more vivid colours than Doesburg. He brought the style off the canvas to sculptures which is very interesting to see and still keeps to the style of the abstraction of reality.