This chapter provides an overview of the various procedural avenues to the Court of Justice of the European Union. It uses as a template the division between two main sets of proceedings: direct actions and preliminary references. Direct actions are brought directly either before the Court of Justice or the General Court; these are dealt with in their entirety by these courts. By contrast, preliminary references begin before a national court. When this court encounters a question on the interpretation or the validity of EU law, it may (or sometimes must) make a preliminary reference on this particular point to the Court of Justice.