Introduction In a recent conference session, a young scholar declared that she was looking at her subject matter-the architecture of the New York Five, if I remember correctly-not merely as style, but rather as a complex nexus of cultural and material conditions. The audience nodded knowingly. To 21st century architects and architectural historians, style, it seems, stands for superficiality, formalism, and obsolete periodization; a grand narrative past its sell-by date. Wittingly or unwittingly, the conference speaker placed herself in a long tradition. To reject style(s) was a favourite pastime for 20th century architects and architectural historians alike. From Hermann Muthesius to Rem Koolhaas, style has been associated with lies, deceit, and masquerade. According to Muthesius, modern architecture had to break free from the chains of style, replacing a stifled Stilarchitektur with a 'living building art' (1902: 67). 'The "styles" are a lie,' proclaimed Le Corbusier in 1923 (2007: 147), a verdict repeated ad verbatim some seventy years later by Koolhaas in his S,M,L,XL glossary, in an entry squeezed in between 'stupid' and 'suicide' (1995: 1188). Ludwig Mies van der Rohe warned not only against recycling old styles but also against seeking new ones, since ' even the will to Style is formalism' (1923: 1). Enjoying a brief recovery during 1970s and '80s postmodernism, style was soon rejected with renewed vigour-just look at Mark Wigley's vehement defence of deconstructivist architecture against accusations of being a style (1988). If modernist architects drove style out of architectural practice, historians followed suit, chasing it out of the history books. Few self-respecting architectural historians use style as their ordering principle any more. Instead, we write histories of types, materials, mediations, constructions, uses-anything to avoid the sword. In a recent debate on how a new general history of Norwegian architecture might be structured, the organizers stated that their foremost ambition was to get away from the art historians' 'style-histories' in order to give a truer account of architectural structures and processes. The ambition is in no way unique. Even though the matrix of epochs and styles survives in some architectural history survey courses, students are soon taught to distrust it. If style plays any role at all in contemporary education, it is as a kind of scaffold: an unsightly structure to be dismantled as soon as possible. Style, as Georg Kubler forcefully stated, is ' a word to avoid' (1979: 163).