This book describes the rules governing appeals before the Court of Justice of the European Union. The appeal is the judicial remedy by which a party may contest a decision of the General Court of the European Union. It concerns matters in which the Tribunal has jurisdiction such as, competition, mergers, state aids, access to documents, restrictive measures, EU staff, trade marks, and other areas of intellectual property. This form of judicial remedy was created just over 25 years ago. It is specific to the ECJ, and can only be learned through the case-law. This book is a description of the case-law, and of the rules that the lawyers pleading appeal cases are required to know.