Jacques LACAN (1901-1981). 15 typescripts, typed or mimeographed. Seminar, 1968-1969; 75pages in-4. Set of 15 lectures from November 13, 1968 to March 26, 1969, illustrated with formulas, diagrams and sketches. The whole of psychic, psychiatric and psychoanalytic theory: these will be the major landmarks of this year, Lacan announced on November 13, 1968. The 1968-1969 seminars will be published under the title De l'autre à l'autre, the title of the 13th seminar on March 9, 1969.