Paul Klee led an artis­tic life that spanned the 19th and 20th cen­turies, but he kept his aes­thet­ic sen­si­bil­i­ty tuned to the future. Because of that, much of the Swiss-Ger­­man Bauhaus-asso­­ci­at­ed painter’s work, which at its most dis­tinc­tive defines its own cat­e­go­ry of abstrac­tion, still exudes a vital­i­ty today. And he left behind not just those 9,000 pieces of art … Con­tin­ue read­ing 3,900 Pages of Paul Klee’s Per­son­al Note­books Are Now Online, Pre­sent­ing His Bauhaus Teach­ings (1921–1931)