Simplify the following text for a Grade 17 native English-speaking person.
Original: Artists who have worked extensively in geometric abstraction include Nadir Afonso , Josef Albers , Richard Anuszkiewicz , Mino Argento , Max Bill , Ilya Bolotowsky , Nassos Daphnis , Ronald Davis , Tony DeLap , Burgoyne Diller , Theo van Doesburg , Thomas Downing , GÃ 1\/4 nter Fruhtrunk , Al Held , Wassily Kandinsky , Ellsworth Kelly , Hilma af Klint , Frantisek Kupka , Michael Loew , Kazimir Malevich , Agnes Martin , John McLaughlin , Piet Mondrian , Barnett Newman , Kenneth Noland , Ad Reinhardt , Jack Reilly , Bridget Riley , Alexander Rodchenko , Sean Scully , Leon Polk Smith , Frank Stella , Sophie Taeuber-Arp , Victor Vasarely , Charmion von Wiegand , Zanis Waldheims , Gordon Walters , Neil Williams and Larry Zox among others .
Simplified: Artists who have worked extensively in geometric abstraction include Josef Albers , Theo van Doesburg , Wassily Kandinsky , Kazimir Malevich , Piet Mondrian , Barnett Newman , Kenneth Noland , Bridget Riley , Alexander Rodchenko , Sophie Taeuber-Arp , among others .