Abstract: (The Past is a River that sleeps and Memory is a Multiform Lie. Memories and Identity Construction in José Eduardo Agualusa's O Vendedor de Passados) The title O Vendedor de Passados already raises doubts about the narratives of the past in the novel of José Eduardo Agualusa. Accordingly, this article examines the extent to which memory processes are created narratologically. The category of space is given a great deal of weight in the investigation. To answer the research question, the novel was subjected to a close reading based on Paul Ricoeur's circle of mimesis as a tool of thought. Basseler & Birke (2022) elaborated the mimesis of memory processes which are of use as a theory of reference, whereby the analysis was based on the narratological category of space. The analysis of the novel shows that the spatial dimension is effective regarding the staging of past narratives: on the one hand, spatiotemporal memory processes are evident. On the other hand, memories can be thematized through symbolic spaces in the literary text. The results also allow us to draw conclusions about the thematization of collective memory on the level of extratextual reality.