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
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