An ardent admirer of Cézanne, the poet Guillaume Apollinaire was one of the first to support and defend the de-structured art of Picasso. His essay Aesthetic Meditations on Painting: The Cubist Painters constitues the first reference text on Cubism. For several years, Dr. Dorothea Eimert has directed the Leopold Hoesch Museum in Düren, Germany. After studying art history, musicology and archaeology, she specialised in art history of the 20th century. She has published diverse works treating Expressionism, Futurism, New Objectivity and Contemporary Art.