In 1911, living in Germany, Wassily Kandinsky founded a radical artists association called The Blue Rider. His treatise “On the Spiritual in Art” proposed that art should not try to picture its surroundings, but should instead reflect the inner workings of the soul. Kandinsky returned to Russia in 1914, and remained there until 1921. He then returned to Europe to teach at the Bauhaus, years that proved to be especially fruitful. He began placing his geometrical forms in overlapping flat planes, and at the same time tweaked and played with color. To celebrate its 10th anniversary, Beaumont Nathan is showing 10 works from Kandinsky’s Bauhaus period, curated by Olivier Berggruen, for 10 days. An appointment is required for this rare event. —Elena Clavarino