“An active line on a walk, moving freely, without goal.” So begins Klee’s Pedagogical Sketchbook, which served as something of a textbook for many Bauhaus students. Five pages follow this famous description of the most basic of human marks, outlining the various types of lines, from those that circumscribe themselves to others that contain fixed points. Each example is accompanied by a diagram, which Klee likely drew on the blackboard during his lectures.

Many of Klee’s lessons center around this type of categorization, demonstrating the multiple ways in which a point can become a line, a line can become a plane, and so on. Beginning with the fundamentals, Klee modeled his teaching methods after the way children learn to read. “First letters, then symbols, then, finally, how to read and write,” he explained. Just as you can rearrange a series of letters to make different words, Klee would ask his students to repeat the same form in as many positions as possible. Such painstaking tasks would lay the groundwork for future works of art and design, and needed to be mastered before tone and color entered the picture.





Lesson #2: Observe a Fishtank