This is a two-volume set of "Creative Thinking," a book compiling Paul Klee's Bauhaus lecture notes from his time as a professor. Paul Klee translated the natural laws of the world, or his own perceptions, into paintings on a flat surface. You can explore the trajectory of his thinking. Purchased and stored new by a private individual. There is some wear, but no yellowing or writing. It is in good condition. Thank you.