This new edition of the book is completely updated with the latest developments in U.S., EU, and WTO law. It contains a number of new cases, replacing older cases. This edition remains concise and retains the features of the first that made it popular: clear expositions of the law and many short, practical, and straight forward problems that liven class discussions and draw home the lessons to the students. The casebook contains many excerpts of major international intellectual property treaties and can be used without the Documents Supplement. Students who wish to have the full text of the treaties can supplement their study with the comprehensive Documents Supplement.