In advance of a highly-anticipated Autumn sales season, Sotheby's New York galleries are abuzz with visitors flocking to the pre-sale exhibitions of Contemporary Art and Impressionist & Modern Art, as well as the storied collections of Nelson & Happy Rockefeller and David Teiger. Highlights of the season include must-see works by Wassily Kandinsky, Gerhard Richter, Ernst Ludwig Kirchner, Japser Johns and many more. Click ahead for a look at the exhibitions now on view through 15 November.