Unfortunately, Labour Law is rarely found on workers’ bookshelves in Europe. It certainly is on the desks of trade union officials, HRM staff of the enterprises and of lawyers and judges, but that is French, German, Polish, etc. labour law.Even among labour law experts, European Labour Law is hardly known. This is not a major issue, as much of Europe’s labour law is implemented in domestic law. However, sometimes it is necessary to trace the European origins of domestic laws, for example when there are doubts as to whether domestic law is fully in accordance with European law