Wassily Kandinsky, with his publication, “Concerning the Spiritual in Art” in 1911, and his even earlier creation of “White Sound,” links several phases of abstraction in the art of the 20th century … From the grids of Piet Mondrian; through the Bauhaus and the abstractions of Laszlo Moholy-Nagy; and through Ben Nicholson, Barbara Hepworth, and the Constructionists in Britain; to Op Art’s Bridget Riley and others, Kandinsky has wielded an immense influence as a champion of non-representational, geometric art. Attested in a series of insightful essays, backed by marvelous color plates, this thesis stands proven by a remarkable book … absolutely stellar …