In this work from his series of artist's books, Marcel Broodthaers documents the performative act of throwing fish at a market in Cologne, creating a poetic intervention that blurs the boundaries between everyday commerce and artistic practice. The publication, limited to 50 numbered copies and produced by Galerie Michael Werner, exemplifies Broodthaers' conceptual approach to art making, where documentation and the book itself become the primary artistic medium. This work reflects his broader exploration of language, commodities, and the nature of the art object itself.