“We decided to make transparent curtains using acrylic material, since we didn’t want the installation to interfere in any way with the existing space,” explains Sejima. At the same time, the Japanese architect’s mark does not pass unobserved. Looking through the transparent walls, Mies’s space appears reflected and distorted, the same and yet subtly different from the original. The installation, on show until 18 January, is part of a periodic programme organised by the Mies van der Rohe foundation, which over the years has invited various other artists to work on this icon of the modern movement, including Enric Miralles and Benedetta Tagliabue, Iñigo Manglano-Ovalle, Jeff Wall, Panamarenko, Angela Bulloch with Joachim Grommek and Dominique Gonzalez- Foerster with Jens Hoffmann. E. S.