Saul Bass was an American graphic designer famous for his logos and film title sequences. He often used simple geometric shapes and basic colors in his work. Bass is best known for his iconic movie posters, which featured jagged lines and blocks to represent key elements of films like The Man with the Golden Arm in a visually striking yet simple style. He revolutionized title sequences through his use of repeating abstract shapes and monochromatic schemes to set mysterious, unsettling tones without explicitly depicting the films' stories.