The EU Parliament's own website explains powers and procedures as well as organisation and rules (2018).  

Short overview of what the European Parliament is and how the EU works (European Parliament Liaison Office in the United Kingdom (2015-18) .

Wikipedia explains the voting system and other aspects (2018).

The EP's official website provides comprehensive informations on its work (2018).

This site explains the principles of conduct for Members of Parliament, in particular, their legislative work. Interest representatives can be searched in a public Transparency Register (2015)

The Legislative Observatory monitors the interinstitutional decision-making process in the European Union, the role of the European Parliament in shaping European legislation and the activities of the various institutions involved in the legislative procedure (2009-20).

The website of the European Parliament gives an overview of how Members of the European Parliament (MEPs) get elected (2018).

Electoral participation and voting behaviour in European Parliament elections are analyzed at every election (Mannheimer Zentrum für Europäische Sozialforschung 2018)

This site explains the principles of conduct for Members of Parliament, in particular, their legislative work. Interest representatives can be searched in a public Transparency Register (2009-20)

Discover the online public database where lobbyists are invited to declare their identity, aims and expenses (2 minutes / European Parliament 2021).