Who are some famous artists known for using line?

Famous artists known for their use of line include Pablo Picasso, renowned for his expressive line drawings and Cubist style, and Henri Matisse, who employed bold, fluid lines in his works. Another notable artist is Egon Schiele, recognized for his emotive and often distorted line work that conveys intense emotion. Additionally, contemporary artist Keith Haring is celebrated for his vibrant, graffiti-style line art that carries social and political messages.