Composition with Red Blue and Yellow working relationship, they were contacted by Theo van Doesburg, a painter who frequently wrote about art for different periodicals and whom is considered the propagandist of the De Stijl movement. He invited Mondrian and van der Leck to join his initiative to start an artistic review periodical. They agreed and the result of this was the journal entitled De Stijl. Together they formed an artistic collective that consisted not only of painters but also architects; the movement was confined to strictly Dutch areas due to war. These artists cannot be considered the same. For example, not all De Stijl artists
Kunst zij ons doel were not well represented. Prominent members of 'De Groep' were: Jan Hendrik van Borssum Buisman, Jules Chapon, Jac Clay, Poppe Damave (chairman), Edgar Fernhout, Frans Funke, Cor Hak, Kees Hak, Anton Heyboer, Marjan Jaspers, Roelof Klein (sculptor), Bart van der Leck, Albert Loots, Jan Meijer, Hans Mulder, Wim Oepts, Kees Okx, Piet Ouborg, Jaap Ploos van Amstel, John Rädecker, Georges Robèr, Charles Roelofsz, Arie Schouten, Wim Schuhmacher, Bert Schutter, Wim Steijn, Levinus Tollenaar, Charley Toorop, Frans Verpoorten, and Jan Wiegers Members were Ben Andréa, Albert Arens, Truida Baaren-Ruysenaars, Nel Bakema, Harry Balm, Elizabeth Frederika van der Ban, Bauk Cornelis Betzema,