Cats, crowds, performers, and working people all found a place in Steinlen’s art. His images move easily between humor, tenderness, and social critique, capturing the energy of Paris without losing sight of its human realities.

After settling in Montmartre, Steinlen became part of the neighborhood’s lively world of cafés, cabarets, illustrated magazines, and radical politics. His poster for Le Chat Noir became one of the defining images of the era, while his drawings and prints often focused on ordinary people and street life.

His work remains memorable because it combines popular appeal with social awareness. Steinlen could make a cabaret poster instantly iconic, but he also looked closely at poverty, labor, and urban hardship, giving modern Paris both charm and conscience.