Published to accompany the exhibitions at the Swiss Architecture Museum in Basel, S AM appears four times a year. This issue examines the reactivation and transformation of spaces and existing structures. Seventeen recent works and projects revel in an aesthetic of the unfinished and the makeshift – in turn raising discussions about our understanding of useful – and useable – space. Architects featured include: Isa Stürm Urs Wolf SA; Haworth Tompkins; OSA; Modulorbeat; and EM2N Architekten.