This study suggests an analysis of the journalistic and literary work of the Mexican writer Angel de Campo [1868-1908], seen in its cultural, social and historical context. It answers a questioning that reveals a literary problematic: how does this emerging modern context operate and influence the writings of Angel de Campo? How does the writer in particular render the metamorphosis of the Mexican city in his chronicles of the so-called Semana Alegre [first published in the journal El Imparcial between 1899 and 1908]. What does he discover and criticise via this literary gender? What is the ideology underlying these chronicles? This research underlines De Campo’s particular use of realistic a esthetics in order to render the immediate events of the period