Klee, Paul, 1879-1940. Paul Klee : : the thinking eye : the notebooks of Paul Klee / [electronic resource] / edited by Jürg Spiller.. — London : : Lund Humphries,, 1961.. — 541p., 2 folding plates : : ill. (some col.) ; 23 cm.
Translation of Das bildnerische Denken, Basle : Benno Schwabe, 1956.