Edited by a small group of students including Alain Badiou, Jacques-Alain Miller and Francois Regnault at the Ecole normale superieure in Paris, the" Cahiers pour l'Analyse" appeared in ten volumes between 1966 to 1969. The journal was conceived as a contribution to a philosophy based on the primacy of concepts and the rigor of logic and formalization, as opposed to lived experience or the interpretation of meaning. The "Cahiers" published landmark texts by the most influential thinkers of the day, including Derrida, Foucault, Irigaray, and Lacan, and were soon recognized as one of the most significant and innovative philosophical projects of the time. The two volumes of "Concept and Form" offer the first systematic presentation and assessment of the "Cahiers" legacy in any language. The first volume translates a selection of original "Cahiers" texts.