Nude Sideways on a Chair, Right Leg Extended to Ground 

This is a sketch by American Abstract Expressionist artist Mark Rothko, known for his color-field paintings. While Rothko is best known for his later works, his early career included figurative art, as seen here in the line drawing, "Nude Sideways on a Chair, Right Leg Extended to Ground". The sketch depicts a nude woman seated on a chair, demonstrating a gestural style that highlights the artist's skill at capturing the human form with minimal detail. The sketch is a compelling example of Rothko's artistic evolution, as it reveals his early interest in capturing the human figure before he moved towards abstraction.