Landscape folio. 114 pages. With hundreds of drawings and mounted plates, 5 of which are in color. Original cloth binding in original slipcase. This diary contains the theory of form and design as developed by Johannes Itten in the preliminary course at the Bauhaus in Weimar in the early 1920s. To this day, his findings in color theory set standards in art education and the design field. The book was written by Johannes Itten on matrices in 1930 and printed in an edition of 300 copies at the Johannes Itten School in Berlin. A rare find.