KNOWLEDGE Review of Letters and Ideas N° 1, January 1920-N° 26, November 1922. Paris, Directors: René-Louis Doyon and Édouard Willermoz. Texts of Henri Bosco, Jean Cassou, Henry Charpentier, Fernand Divoire, René-Louis Doyon, Frantz Jourdain, Ker-Frank-Houx, Philéas Lebesgue, André Lebey, André Malraux (" Des origines de la poésie cubiste ", first writing published by Malraux), Maurice Martin du Gard, Victor-Émile Michelet, Léon Pierre-Quint, André Spire, Édouard Willermoz, etc. Complete collection. 26 numbers in 26 issues in-8 bound in 5 slipcases + 1 slipcase containing the attached documents. Handwritten notes by Vasseur (6 ff.). Joint : - 2 L.A.S. from René-Louis Doyon (1919 and 1925) to Alfred Vallette, concerning the Editions de La Connaissance ; - The 2 bulletins that preceded the magazine, September 20 and December 20, 1919 (rare) ; - Various prospectuses of the editions of La Connaissance.