I love to read about other artists, don't you? In my reading I found excerpts from Paul Klee’s Pedagogical Sketchbook (1925).
Paul Klee interesting tid-bits:
Paul Klee kept sketchbook since he was very young. The museum actually has ten from those days.
He was left-handed.
Another fact I didn't know was that he was the stay at home dad for the first 6 years of his child's life. His wife was a concert pianist and teacher. She traveled widely. He said his domestic duties got in the way of his art. (imagine that!)
He said that it was in Tunisia that he began to understand and explore color. Here's a brief outline.
Wonderful quote: "Art does not produce the visible but make it visible. "
link to the full article.
I love "Observe a fish tank."