This book provides clear guidance on what constitutes State Aid in the area of tax law. It clearly explains the situations in which beneficial tax provisions for the taxpayer - e.g., lower tax rates for certain industries or for certain economic zones, advantageous depreciation rules, or exemptions - can be declared void by the European Commission. The difficult controlling concept of 'selectivity' of an aid is dealt with extensively. Drawing on familiarity with the practice of the Commission, as well as the jurisprudence of the General Court and of the Court of Justice, thirteen...