Typical of his art are compositions employing only vertical and horizontal lines at 90° angles and using only the primary colors and sometimes grays or black against a white background. Sensuality, three-dimensionality, and representation are utterly eliminated from his works, as is the curved line. Within these restrictions, his paintings are executed with consummate perfection of design and craft. Much of Mondrian's work is in American and European private collections. He is well represented in the Museum of Modern Art, New York City, and in the Art Institute of Chicago.
See his essays (1945); studies by M. Seuphor (tr. 1957), F. Elgar (tr. 1968), H. L. C. Jaffé (1970), and C. Blotkamp (1995).
Piet-Hein Willem Geeris (born March 29, 1972 in Boxtel, Noord-Brabant) is a former Dutch field hockey player, who played 194 international matches for The Netherlands, in which he scored 29 goals. The forward and midfielder made his debut for the Dutch on May 5, 1993 in a friendly match against Ireland. His last appearance in the Holland squad came just before the 2004 Summer Olympics in Athens.
Geeris played in the Dutch League for MEP, HC Tilburg, HC Den Bosch and Oranje Zwart. In between he also went to Italy, and played for Cernusco. He stopped competing at top level in the spring of 2004, and then continued playing in Belgium.