Theophile Steinlen was a Swiss-born painter and illustrator, best known for his work in the late 19th and early 20th centuries. He became a prominent figure in the Montmartre art scene in Paris, where he created iconic posters and illustrations, particularly for the famous cabaret, Le Chat Noir. His art often depicted the lives of the working class and the bohemian lifestyle of the time. Steinlen's style combined elements of Impressionism and Post-Impressionism, characterized by bold lines and expressive forms. He is particularly recognized for his depictions of cats, which became a recurring theme in his work. His contributions to the art world continue to be celebrated for their emotional depth and social commentary.