20th-century Western painting painted women, reminiscent of African tribal masks and his own new proto-Cubist inventions. Analytic cubism, exemplified by "Violin and Candlestick, Paris", was jointly developed by Pablo Picasso and Georges Braque from about 1908 through 1912. Analytic cubism was followed by Synthetic cubism, characterized by the introduction of different textures, surfaces, collage elements, papier collé and a large variety of merged subject matter. Crystal Cubism was a distilled form of Cubism consistent with a shift between 1915 and 1916 towards a strong emphasis on flat surface activity and large overlapping geometric planes, practised by Braque, Picasso, Jean Metzinger, Albert Gleizes, Juan
Czech Cubism secessionist designers such as Otto Wagner and Jan Kotěra. Architects such as Josef Chochol and Pavel Janák devised spiritualist philosophies of design and a dynamic ideal of planar form derived from cubist art. As Cubism spread across the European continent in the early 20th century, its greatest impact can be seen today in the Czech Republic. Pyramid and crystal forms were one of the signature principles seen in Czech Cubism which was incorporated in architecture, furniture, and applied arts. The Museum of Decorative Arts in Prague (UPM) uses the House of the Black Madonna as a permanent exhibition space for