On Saturday January 14th 2017, the study-day of the ASREEP-NLS on the theme of the next Congress of the NLS, "About the Unconscious: Place and Interpretation of the Formations of the Unconscious in Psychoanalytic Treatments", was held in Geneva, Switzerland. On this occasion Lilia Mahjoub, current president of the NLS, gave a lecture entitled "Les mots de l'inconscient. Unbewusste, Parlêtre, Une Bévue ... " ("The Words of the Unconscious: Unbewusste, Parlêtre, Une Bévue ... "). This study-day was organized and coordinated by Nelson Feldman, President of the ASREEP-NLS (Swiss group of the NLS). The debate was chaired by François Ansermet.