The purpose of the handbook is to provide practitioners and legal scholars with a comprehensive overview and a systematic assessment of the relevant cases and issues in the field of international investment law. The handbook thus aims at giving both a first overview as well as a detailed insight into all aspects of investment law. The handbook provides a thorough legal analysis of arbitral jurisprudence and identifies emerging trends and developments. This book will be of crucial importance to investors, legal practitioners, and scholars. Further, it will answer the call for a comprehensive academic study of crucial developments, such as the increasing role of European Union Law or the rising impact of multilateral approaches on the system of international investment law.