Mathematics and art through the strings as with a bird cage and to see one form within another which excited me." The artists Theo van Doesburg and Piet Mondrian founded the De Stijl movement, which they wanted to "establish a visual vocabulary elementary geometrical forms comprehensible by all and adaptable to any discipline". Many of their artworks visibly consist of ruled squares and triangles, sometimes also with circles. De Stijl artists worked in painting, furniture, interior design and architecture. After the breakup of De Stijl, Van Doesburg founded the Avant-garde Art Concret movement, describing his 1929–1930 "Arithmetic Composition", a series of four black
Theo van Reijn Theo van Reijn Theo van Reijn (Breda, May 28, 1884 - Haarlem, August 6, 1954) was a Dutch sculptor. Van Reijn attended classes in 1905 at the Rijksakademie van beeldende kunsten in Amsterdam, where Bart van Hove was one of the teachers. In 1911 he won the Dutch Prix de Rome and spent a year in Rome, and in 1914 worked in Paris. Back in The Netherlands he settled in Haarlem, where he worked until 1954. One of his pupils in Haarlem was Joop Beljon. In 1948 van Reijn wrote a book about the foremost Dutch contemporary sculptures, which was