Even though Burkhalter Sumi are now working on larger scale problems and projects than before, their way of thinking and working shows a remarkable consistency over the 21 years since the office's founding. Over years of observations, mulling and simply following their personal tastes the architects had assembled a host of complicated and contradictory issues about timber architecture, such as tectonics, form and its perception, prefabrication, colour, ecology and hybrid structures. This issue of "2G" magazine, devoted to Burkhalter Sumi, collects an illustrative selection of recent works by the Swiss team, including residential projects, urban planning, projects for the workplace and exhibitions.