Why is Le Spleen de Paris considered an important work of urban writing?

Le Spleen de Paris (also known as Petits poèmes en prose) is considered a foundational work of urban literature because it captures the essence of the modern city through both its subject matter and its innovative form.

The work focuses on the urban experience, documenting the lives of those often overlooked in the city, including street traders, the poor, the deranged, and the derelict. By highlighting these figures, Baudelaire explores the suffering and the "heroism of modern life" found within crowded, bustling environments.1

Beyond its content, the form of the prose poem itself is uniquely urban. Baudelaire described the style as "musical but without rhythm and rhyme," noting that it was born from his frequent contact with enormous cities and their complex, intersecting connections. Its deliberate fragmentation and blend of the lyrical and the sardonic mirror the disorienting nature of city life, serving as a textual equivalent to the work of the Impressionist painters.1