In June 2011 the International Council for Commercial Arbitration (ICCA) marked its fiftieth anniversary with a celebratory conference in Geneva, the birthplace of ICCA. This volume, ICCA Congress Series no. 16, comprises the proceedings of the conference, in which eminent arbitration scholars and practitioners assess the current state of arbitration – both international commercial arbitration and international investment arbitration – and what the future holds for arbitration and for ICCA.