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
Theo van Gogh (art dealer) He also helped Vincent pursue his life as an artist through his unwavering emotional support and love. The majority of Theo's letters and communications with Vincent are filled with praise and encouragement. Vincent would send Theo sketches and ideas for paintings, along with accounts of his day to day experiences, to the delight and eager attention of Theo. While it is true that Theo is best known for being the brother of Vincent van Gogh and that one of the major roles of Theo van Gogh's life was his influence on Vincent's career, Theo himself made many important contributions within