The praxis of Precarias a la deriva, a group composed of women workers from Madrid, is a sample of the transformation of the modes of production of meaning of contemporary society in the frame of activist and collective processes. In their work A la deriva por los circuitos de la precariedad femenina, this group carries out a collective research project on labour precariousness. This investigation questions institutionalized practices and develops different ways of thinking, acting and creating involved with collective processes that take part in the debate of the notion of authorship in the contemporary writing model. The aim of this article is to analyze the idea of urban space presented in this work, as well as to value the way individual authorship is questioned through a collective writing practice. Likewise, the article examines the process of creating a collective political subject through collective writing, taking into account the weight these processes have in the definition of contemporary subjectivity.