The study begins with a comprehensive overview of the basic principles and concepts of EU tax law and relevant articles of the Treaty on the Functioning of the European Union, analysing them in the light of direct tax case law. A discussion follows covering relevant EU directives and recommendations and other soft law material on direct taxes. Reference is made to all relevant judgments of the EU Court on direct taxes. The book includes a chapter on the tax treatment of the different EU entity forms and the future of corporate taxation. A separate chapter is dedicated to the EU law issues related to transfer pricing and to the EU law norms on administrative assistance in tax matters. An extensive bibliography is included that directs the reader to further material on the topic.