The rise and inevitable decline of Nana, a courtesan who embodies the moral decay of the Second Empire, serves as the catalyst for this examination of Parisian society. Nana navigates the opulent and treacherous world of the French elite, utilizing her beauty and influence to manipulate the men who seek to possess her. Her objective is survival and social ascension within a rigid hierarchy that views her as both a prize and a threat. The narrative framework employs a third-person perspective that meticulously observes the physical and psychological degradation of the characters as they succumb to their own vices. The world is defined by the stark contrast between the glittering surface of the theater and the underlying rot of the aristocracy.

Discussion often centers on Zola's unflinching commitment to the principles of naturalism, which critics frequently praise for its clinical precision. Readers highlight the atmospheric density of the prose, noting how the author captures the sensory details of the Parisian boulevards and theaters. Many observers point to the character of Nana as a complex figure who functions as both a victim and a force of destruction within her environment. The pacing is frequently described as deliberate, allowing for a thorough examination of the social mechanisms that lead to the protagonist's eventual ruin. Scholars often emphasize the book's role as a critique of the hypocrisy inherent in the upper echelons of nineteenth-century society.