20th-century art style can be summarized by two major movements: CUBISM and Postmodernism. CUBISM was a movement that began in the early 1900s, characterized by the use of geometric shapes and fragmented forms to represent objects. Postmodernism is an art movement that emerged in the late 20th century, characterized by a rejection of traditional forms and the use of irony and parody. Both movements have had a lasting influence on modern art.