Theorising the urban commons: New thoughts, tensions and paths forwardDellenbaughMaryKipMarkusBieniokMajken. (eds), Urban Commons: Moving Beyond State and Market, Birkhäuser Press: Berlin, 2015; 244 pp.: ISBN: 978-3-03821-661-2, £22.99/US$42.00 (pbk)BorchChristianKornbergerMartin (eds), Urban Commons: Rethinking the City, Routledge: London, 2015; 176 pp.: ISBN: 978-1-13-801724-5, £75.00 (hbk)FergusonFrancesca (ed.), Make_Shift City: Renegotiating the Urban Commons, Jovis Verlag: Berlin, 2014; 256 pp.: ISBN: 978-3-86859-223-8, €32.00 (pbk)