In light of the controversy of the Philip Morris cases against Australia and Uruguay, this book systematically explores trade marks and brands as foreign direct investment, and in particular their substantive protection under international investment treaties. With the use of various hypothetical examples of devaluation of investments made in brands, the book explores the specifics of arbitrating investment claims arising out of state trade mark regulation. This work aims to establish useful tools in bridging the terminological and analytical gaps between experts in intellectual property law and international investment law.