Composition with Red Blue and Yellow De Stijl. An encounter with fellow Dutch artist Bart van der Leck provided ground for Mondrian to exchange ideas. From van der Leck he received the concept of painting flat areas of pure color; a solution to Mondrian’s problem of coloring - he was then using color in what he considered an Impressionist way, which was too restless and emotional. In return, van der Leck adopted Mondrian’s concept of crossed vertical and horizontal lines as a basis for composition. These two technical elements are consistent throughout all of Mondrian’s work. Shortly after the formation of Mondrian and van der Leck’s
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