This up-to-date and revised third edition offers a clear and comprehensive overview of the main principles, institutions and procedures related to foreign direct investment and the resolution of disputes. Suitable for both upper-level undergraduate and postgraduate courses on international investment protection, the book is firmly grounded within the wider public international law context. Key Features of the third edition:Incorporates extracts from and analysis of key recent decisions, including David Aven et al v. Costa Rica, Greentech Energy Systems et al v. Italy and Venezuela v. OI European GroupCoverage is brought up to date with new discussion of revised investment treaty texts and new court system proposalsBalanced and neutral engagement with both normative standards and critiques of the system encourages students to draw their own conclusionsProvides concise descriptions of the legal principles followed by extracts from both classic and contemporary cases to enhance understanding of core conceptsContains detailed discussion notes and all new 'Questions to an Expert' to enable further classroom discussion and facilitate critical reflection on complex topics.The concise nature of the book and accessible writing style make this an ideal text for non-specialists and for single semester courses on international investment protection.