This paper discusses the relationship between the idea of coherence and the legal order set up by the European Community. It focuses on a specific dimension of this relationship and shows how the appeals to coherence made by the European Court of Justice have shaped a particular branch of the European legal order, namely, the judicial review of Community acts. The analysis of the Court of Justice's case law in this field shows that in its extensive use of coherence the Court of Justice explored and brought into play different types of coherence and, while it failed to distinguish between them, it made use of sorts of coherence that thus far legal theorists have disregarded. The article concludes that a closer collaboration between legal theory and legal practice would be profitable for both legal theorists and Community law specialists.