How does Au Bonheur des Dames portray the rise of department stores?

In his novel Au Bonheur des Dames (1883), Émile Zola portrays the rise of the department store by examining the internal mechanisms of this new economic entity and its disruptive impact on smaller, traditional merchants.12

Zola characterizes the novel as a "poem of modern activity," utilizing sweeping, vivid descriptions of crowds and elaborate dry-goods displays to capture the energy of this retail transformation. By focusing on the department store as a central environment, the work serves as a sociological document of the Second Empire, illustrating how modern industrialism and its associated commercial institutions fundamentally altered the professional and economic landscape of the era.12