De Stijl was published by the Dutch painter, designer, writer, and critic Theo van Doesburg that served to propagate the group's theories. Along with Theo van Doesburg, the group's principal members were the painters Piet Mondrian, Vilmos Huszár, and Bart van der Leck, and the architects Gerrit Rietveld, Robert van 't Hoff, and J. J. P. Oud. The artistic philosophy that formed a basis for the group's work is known as "Neoplasticism"—the new plastic art (or "Nieuwe Beelding" in Dutch). According to Theo van Doesburg in the introduction of the magazine "De Stijl" 1917 no.1, the "De Stijl"-movement was a reaction to
Piet van der Walt Piet van der Walt Piet Jacobus van der Walt (born 14 January 1966 in Okahandja) is a Namibian businessperson and politician who has been the Deputy Minister of National Planning since 2018. Van der Walt grew up in Okahandja and went to primary school there. His secondary school was the Higher Technical School in Windhoek. He became a diesel mechanic by profession, graduating in 1989 from the Windhoek Technical College. He also holds an engineering diploma in mechanical drawing and machines and properties of metals. Commenting on his alleged service for "Koevoet", the counter-insurgency branch of the South West African