"To emphasize only the beautiful seems to me to be like a mathematical system that only concerns itself with positive numbers." -Paul Klee

Direct link: http://www.kleegestaltungslehre.zpk.org/ee/ZPK/BF/2012/01/01...

Unfortunately, it appears to be down at the moment.

Seems down (Error 500). However, the books that were published can be viewed at Monoskop: http://monoskop.org/log/?p=10127

For those who are interested in Klee's personal notebooks, this collection of Bauhaus eBooks on the same site could also be of interest (iirc, HN brought me to these a couple of months ago): http://monoskop.org/Bauhaus#Books

Klee is proof for the 'practice minded' set. Certainly he had natural artistic talent (and was an accomplished chamber musician), but he worked very hard to arrive at a fundamental understanding of color.

Only a matter of time before someone translates them into English.

There's a translated edition available.

ended up reading this, very cool but I thought a new laptop framework was being released!