The series of International Colloquia on Stability and Ductility of Steel Structures, that has been supported by the Structural Stability Research Council (SSRC) and by the European Convention for Constructional Steelwork (ECCS), aims at providing a forum for discussion and dissemination, by researchers and designers, of the most recent advances in theoretical, numerical and experimental research in the field of stability and ductility of steel and composite steel and concrete structures.