Deconstructivism is a postmodern architectural movement which appeared in the 1980s. It gives the impression of the fragmentation of the constructed building, commonly characterised by an absence of obvious harmony, continuity, or symmetry. Its name is a portmanteau of Constructivism and "Deconstruction", a form of semiotic analysis developed by the French philosopher Jacques Derrida. Architects whose work is often described as deconstructivist (though in many cases the architects themselves reject the label) include Zaha Hadid, Peter Eisenman, Frank Gehry, Rem Koolhaas, Daniel Libeskind, Bernard Tschumi, and Coop Himmelb(l)au.The term does not inherently refer to the style's deconstructed visuals as the English adjective suggests, but instead derives from the movement's foundations in contrast to the Russian Constructivist movement during the First World War that "broke the rules" of classical architecture through the French language.Besides fragmentation, deconstructivism often manipulates the structure's surface skin and deploys non-rectilinear shapes which appear to distort and dislocate established elements of architecture. The finished visual appearance is characterized by unpredictability and controlled chaos. Source: Wikipedia (en)