This second edition of the first comprehensive commentary on the Swiss Rules of International Arbitration covers the new version of these rules which entered into force on 1 June 2012. It is a practical guide for arbitrators, counsel, state courts and persons involved in the conduct and administration of arbitral proceedings under the Swiss Rules. This commentary presents the new version of the Swiss Rules from a double perspective. On the one hand, it emphasizes the relationship between these Rules and the Swiss legal regime governing international arbitration, namely the provisions of chapter 12 of the Swiss Private International Law Statute. On the other hand, it puts these Rules in an international perspective by comparing them with the corresponding provisions of the other major institutional rules (ICC, LCIA, SCC, DIS, VIAC, SIAC, HKIAC, CIETAC, AAA/ ICDR, WIPO and ICSID) and with the provisions of the former edition of the rules. Finally, it highlights the main differences between the Swiss Rules and the UNCITRAL Arbitration Rules which were revised in 2010. This book is written by arbitration practitioners based in Switzerland who work with established law firms, widely experienced in international commercial arbitration. It is the work of a refreshing new generation of Swiss arbitration specialists. The authors and contributors reflect a refreshing new generation of Swiss arbitration specialist practitioners. Two of the editors were members of the working group for the revision of the Swiss Rules and thus bring special insight into the book about the revision process. Tobias Zuberbühler is a Partner with Lustenberger Attorneys at Law in Zurich. He regularly publishes and holds presentations in the field of international arbitration. Mr. Zuberbühler is former President of the International Arbitration Commission of AIJA (Association International des Jeunes Avocats). Christoph Müller is Professor for Private Law at the University of Neuchâtel. He is a Member of the Arbitration Court under the Swiss Rules of International Arbitration and a Member of the Working Group for the Revision of the Swiss Rules of International Arbitration Philipp Habegger is a Partner with Walder Wyss and Partners in Zurich. He is a Court Member of the ICC International Court of Arbitration and the Arbitration Committee of the Swiss Rules of International Arbitration. He is a former Vice Chair of the Arbitration Committee of the International Bar Association.