European Union law is a body of treaties and legislation, such as Regulations and Directives, which have direct effect or indirect effect on the laws of European Union member states. The three sources of European Union law are primary law, secondary law and supplementary law. The main sources of primary law are the Treaties establishing the European Union. Secondary sources include regulations and directives which are based on the Treaties. The legislature of the European Union is principally composed of the European Parliament and the Council of the European Union, which under the Treaties may establish secondary law to pursue the objective set out in the Treaties. 

European Union law is applied by the courts of member states and the Court of Justice of the European Union. Where the laws of member states provide for lesser rights European Union law can be enforced by the courts of member states. In case of European Union law which should have been transposed into the laws of member states, such as Directives, the European Commission can take proceedings against the member state under the Treaty on the Functioning of the European Union. The European Court of Justice is the highest court able to interpret European Union law. Supplementary sources of European Union law include case law by the Court of Justice, international law and general principles of European Union law.
Is the European Union law  a body?
of what?
How many sources of EU law are there?
What is one?
Any others?
What is another one?
What is primary law?
What are secondary sources?
Does the EU have a legislature?
How many bodies make up the legislature?
What are these?
Do they establish secondary law?
Is the law applied by courts?
What are Directives?
Is there a highest court?
What do they do?
What is an example of a supplementary source of EU law?
Any others?
What is one?
What is another?
yes
European Union law is a body of treaties
of treaties and legislation
European Union law is a body of treaties and legislation
Three
The three sources of European Union law
primary law
The three sources of European Union law are primary law
yes
secondary law and supplementary law
secondary law
 European Union law are primary law, secondary law
the Treaties establishing the European Union.
The main sources of primary law are the Treaties establishing the European Union.
regulations and directives
Secondary sources include regulations and directives 
yes
The legislature of the European Union 
Two
he legislature of the European Union is principally composed of the European Parliament and the Council of the European Union,
the European Parliament and the Council of the European Union,
he legislature of the European Union is principally composed of the European Parliament and the Council of the European Union,
yes
which under the Treaties may establish secondary law
yes
European Union law is applied by the courts
law which should have been transposed into the laws of member states,
uropean Union law which should have been transposed into the laws of member states, such as Directives
he European Court of Justice
he European Court of Justice is the highest court 
interprets European Union law
The European Court of Justice is the highest court able to interpret European Union law
case law by the Court of Justice,
Supplementary sources of European Union law include case law by the Court of Justice,
yes
nternational law and general principles of European Union law.
international law
international law 
general principles of European Union law.
general principles of European Union law.