Abstract art movements like Expressionism, Surrealism, and Dada revolutionized 20th-century art. These styles rejected traditional representation, instead focusing on emotions, the subconscious, and absurdity to create powerful, unconventional works. Key artists like Kandinsky, Dalí, and Duchamp pushed boundaries, using innovative techniques and philosophical ideas. Their legacy continues to influence contemporary art, challenging viewers to engage with art in new, thought-provoking ways.