The artist well-known for the mural "Guernica" is Pablo Picasso. Created in response to the bombing of Guernica during the Spanish Civil War, this monumental artwork symbolizes the horrors of war and human suffering. Picasso's use of monochromatic colors and distorted figures expresses profound emotion and political commentary. Recognized as one of the most significant artists of the 20th century, Picasso's work has had a lasting impact on modern art, influencing countless artists globally.